Home
we had subs it was crazy

Primary links

  • About
    • $upport (lol)
    • Ethics
    • FAQ
    • Privacy Policy
  • Contact
  • MGoStore
  • MGoBoard
    • MGoBoard FAQ
    • Ticket spreadsheet
    • Michigan bar locator
    • Moderator Action Sticky
  • Useful Stuff
    • Depth Chart By Class
    • Unofficial Two Deep
    • 2013 Offer Board
    • Crude Bug Tracking System
    • Third Down Stats
    • Diaries, Windows Live Writer, And You
    • Michigan Future Schedules
    • User-Curated HOF
    • 2013 Recruiting Board
    • Where To Eat In Ann Arbor
Home Diaries colin's blog

Navigation

  • Forums
  • Recent posts

User login

  • Create new account
  • Request new password

MGoElsewhere

  • @MGoBlog (Brian)
  • @aceanbender
  • @TomVH (Tom)
  • RSS Feed
  • iPhone App
  • Facebook profile
  • MGoKindle Store
  • mgo.licio.us
  • Brian @ TSB [Archive]
  • Brian @ AOL [Archive]
  • Sour Salty Bitter Sweet

Michigan Blogs

  • Big House Blog
  • Burgeoning Wolverine Star
  • Genuinely Sarcastic
  • Go Blue Michigan Wolverine
  • Holdin' The Rope
  • MGoFootball
  • MVictors
  • Maize 'n' Blue Nation
  • Maize 'n' Brew
  • Maize And Go Blue
  • Michigan Hockey Net
  • The Blog That Yost Built
  • The Hoover Street Rag
  • The M Block
  • The M Zone
  • The Wolverine Blog
  • Touch The Banner
  • UMGoBlog
  • UMHoops
  • UMTailgate
  • Wolverine Liberation Army

M On The Net

  • mgovideo
  • MGoBlue.com
  • Mike DeSimone
  • Recruiting Planet
  • The Wolverine
  • Go Blue Wolverine
  • Winged Helmet
  • UMGoBlue.com
  • MaizeRage.org
  • Puckhead
  • The M Den
  • True Blue Fan Forum

Big Ten Blogs

  • Illinois
    • A Lion Eye
    • Hail To The Orange
    • Illinois Baseball Report
    • Illinois Loyalty
  • Indiana
    • Inside The Hall
    • The Crimson Quarry
  • Iowa
    • Black Heart, Gold Pants
    • Fight For Iowa
  • Michigan State
    • The Only Colors
  • Minnesota
    • GopherHole.com
    • The Daily Gopher
    • I'm In Love With A Fringe Bowl Team
    • TNABACG
  • Nebraska
    • Big Red Network
    • Corn Nation
    • Husker Mike's Blasphemy
    • Husker Gameday
  • Northwestern
    • Sippin' On Purple
    • Lake The Posts
  • Notre Dame
    • The House Rock Built
    • One Foot Down
  • Ohio State
    • Eleven Warriors
    • Buckeye Commentary
    • Men of the Scarlet and Gray
    • Our Honor Defend
    • The Buckeye Nine
  • Penn State
    • Slow States
    • Black Shoe Diaries
    • Happy Valley Hardball
    • Penn State Clips
    • Linebacker U
    • Nittany White Out
  • Purdue
    • Boiled Sports
    • Hammer and Rails
  • Wisconsin
    • Bruce Ciskie

Links of Note

  • Baseball
    • Big Ten Hardball
    • College Baseball Today
    • The Baseball Zealot
    • The College Baseball Blog
  • Basketball
    • Ken Pomeroy
    • Basketball Prospectus
    • Midmajority
  • College Hockey
    • Chris Heisenberg
    • College Hockey Stats
    • Inside College Hockey
    • Michigan College Hockey
    • Hockey's Future
    • Sioux Sports
    • USCHO
    • Western College Hockey
    • CCHA
      • LSSU Hockey
      • Bronco Hockey Blog
  • Football
    • Smart Football
    • Every Day Should Be Saturday
    • Doctor Saturday
    • CFB Stats
    • Harold Stassen
    • NCAA D-I Stats Page
    • The Wizard Of Odds
  • General
    • Sports Central
  • Local Interest
    • The Ann Arbor Chronicle
    • Arborwiki
    • Arbor Update
    • Teeter Talk
    • Vacuum
  • Teams Of The D
    • Lions
      • Pride of Detroit
      • Fire Millen
    • Pistons
      • Detroit Bad Boys
      • Need4Sheed
    • Tigers
      • Roar Of The Tigers
      • The Detroit Tigers Weblog
      • The Daily Fungo
    • Red Wings
      • On The Wings
      • Behind The Jersey
      • Winging It In Motown
    • Michigan Sports Forum

Archive

  • May 2013 (48)
  • April 2013 (94)
  • March 2013 (104)
  • February 2013 (81)
  • January 2013 (93)
  • December 2012 (74)
  • November 2012 (142)
  • October 2012 (143)
  • September 2012 (107)
  • August 2012 (103)
  •  
  • 1 of 11
  • ››

Get Yer Tickets

Football Display Case

NFL Watches

Follow your favorite team with localtv-satellite.com: Click Here.

Site Search

Diaries

  • New
  • Popular
  • Hot
  • Observations on the National Championship Game
    Paps - 2 weeks ago
  • Recalling My First Experiences With MGoCulture
    LSAClassOf2000 - 2 weeks ago
  • 2013 NFL Draft Recap: B1G Team Comparisons
    UMgradMSUdad - 3 weeks ago
  • The Blockhams in "TIE YOUR LACES"
    Six Zero - 3 weeks ago
  • Offseason Wallpaper - UPDATED WALLPAPER
    jonvalk - 3 weeks ago
  • ‹‹
  • 3 of 4
  • ››
more
  • LIGHT IT UP, AGAIN. WALLPAPER
    jonvalk - 391 views
  • A Cynical Take on Why Expansion May be Dead for the Forseeable Future
    maizeonblueaction - 232 views
  • ‹‹
  • 2 of 2
  •  
more
  • Big Ten Recruiting Rankings 4-30-13
    Ace - 81 comments
  • Big Ten Recruiting Rankings 5-15-13
    Ace - 51 comments
  • Using Rivals' Star Ratings To Look At Big Ten Football Recruiting: 2002-2013
    LSAClassOf2000 - 17 comments
  • Future Non-Conference Opponent Recruiting Watch
    EGD - 15 comments
  • LIGHT IT UP, AGAIN. WALLPAPER
    jonvalk - 12 comments
  •  
  • 1 of 2
  • ››
more

MGoBoard

  • New
  • Recent
  • Hot
  • (Ole Miss) Hugh Freeze seems to be claiming BCS titles now
    0 replies
  • OT: NBA Draft Lottery
    37 replies
  • Complete 2013-14 M Hockey scheduled revealed
    14 replies
  • How much do you really hate ohio?
    98 replies
  • Our footballs are made in the USA but not in Ohio
    23 replies
  • Gardner updates the recovery of Fitz & Countess
    35 replies
  • OT-Two new Wolverine Fans have joined us (UPDATED WITH PHOTOS FROM TONIGHT)
    56 replies
  • Pizza Pizza Bowl Fires Back!
    24 replies
  • Are TV sets the only reason for RU and MD?
    49 replies
  • Rivals 250 notes
    56 replies
  • ESPN: Michigan BBall article featuring GRIII.
    6 replies
  • Arkansas QB Mitchell to NC State
    24 replies
  • Detroit Lions to start new bowl pitting Big Ten vs. ACC in 2014
    44 replies
  • Speight and TomVH on Peppers
    112 replies
  • ESPN: Trey Burke Articles/Video/Fluff/Etc.
    12 replies
  •  
  • 1 of 7
  • ››
  • OT: NBA Draft Lottery
    37 replies
  • Our footballs are made in the USA but not in Ohio
    23 replies
  • OT-Two new Wolverine Fans have joined us (UPDATED WITH PHOTOS FROM TONIGHT)
    56 replies
  • (Ole Miss) Hugh Freeze seems to be claiming BCS titles now
    0 replies
  • How much do you really hate ohio?
    98 replies
  • Are TV sets the only reason for RU and MD?
    49 replies
  • Gardner updates the recovery of Fitz & Countess
    35 replies
  • ESPN: Trey Burke Articles/Video/Fluff/Etc.
    12 replies
  • OT: End of Drew and Mike on 101WRIF
    40 replies
  • Detroit Lions to start new bowl pitting Big Ten vs. ACC in 2014
    44 replies
  • Complete 2013-14 M Hockey scheduled revealed
    14 replies
  • Pizza Pizza Bowl Fires Back!
    24 replies
  • Speight and TomVH on Peppers
    112 replies
  • Rivals 250 notes
    56 replies
  • ESPN: Michigan BBall article featuring GRIII.
    6 replies
  •  
  • 1 of 7
  • ››
  • OT: Red Wings vs Hawks Game 3 Open Thread
    203 replies
  • OT: Red Wings vs. Blackhawks Open Thread
    201 replies
  • Jabrill Peppers Announcement Date Set
    169 replies
  • UM 2014 Conf schedule football
    123 replies
  • Brandon on Uniformzzz
    119 replies
  • OT: Red Wings @ Hawks Game 2 Open Thread
    114 replies
  • Prayers for Moore, Oklahoma
    112 replies
  • Speight and TomVH on Peppers
    112 replies
  • How much do you really hate ohio?
    98 replies
  • Alex Bars to Notre Dame
    96 replies
  • PSU about to get blasted again by SI investigative report
    88 replies
  • ESPN 30 for 30 on the Bad Boys
    77 replies
  • Michigan Softball vs. Cal Open Thread
    75 replies
  • 5 star 2013 DT may not be enrolling at Notre Dame
    74 replies
  • Michigan has #1 recruiting class on ESPN now.
    73 replies
  •  
  • 1 of 7
  • ››

mgo.licio.us

  • Former Arkansas QB Brandon Mitchell transferring to NC State

    so much for that

    0 comments
  • The B1G List: Ranking the State Fossils of the Big Ten

    This list is completely arbitrary and not a genuine analysis of the relative merits of state fossils.

    0 comments
  • Trey Burke turns to inner circle to prepare for NBA draft

    will be michigan's highest pick in a while

    2 comments
  • B1G assistant coach salaries on the rise

    money has to go somewhere

    0 comments
  • Tim Hardaway Jr. is motivated by his critics and doubters, and supremely confident in his ability

    I am only motivated by people who have no opinion about me.

    0 comments
  • Big Ten football procrastinates on parity-based scheduling, and nothing ever changes

    the just released schedules were a flat-out statement that the B10 doesn't believe SOS will matter in playoff selection

    1 comments
  • Michigan's Glenn Robinson III, Mitch McGary ranked inside top 20 on ESPN's 2014 draft board

    but I thought that draft was supposed to be incredibly loaded?

    1 comments
  • Tim Hardaway Jr. turning heads, viewed as a first-rounder by some teams, analyst says

    If you're gonna go please be in the first round.

    0 comments
  • Michigan-Ohio State once, Indiana-Purdue once? The Big Ten has to protect its hoops rivalries

    another delightful side effect of a 14 team conference

    0 comments
  • Beilein on transfers: All should have to sit a year, regardless of situation

    I disagree.

    0 comments
  • Julie Hermann takes over as Rutgers AD, won't try to spend like Michigan

    GOOD PLAN

    2 comments
  • Jay Harris says no to Michigan State, decides to become a rapper

    hahahahaha

    0 comments
  • The Difference Between A Good Fan And A Bad Fan

    thoughtful piece from Jacobi on middle finger lady

    3 comments
  • Michigan's rising recruiting profile exciting John Beilein, who remains true to his scouting form

    Their high school coaches and AAU coaches have probably a better appreciation of Michigan than maybe they had before," Beilein said. "It's a tough balance right now. Tim Hardaway and Trey Burke weren't really high-profile players, nor was Darius Morris, and all were high-profile players. "We're still looking at 'who is the best fit.' "

    0 comments
  • Charles Barkley discusses Michael Jordan, Dream Team and more - NBA - Jack McCallum - SI.com

    "When I call somebody a midget, clearly I'm not trying to insult f---ing midgets. I'm just using basketball terminology."

    0 comments
  •  
  • 1 of 2
  • ››
more

At Least Nick Sheridan Has People Skills

By colin — February 13th, 2009 at 10:15 AM — 67 comments

One of the most lamentable aspects of being a college football fan as far as I'm concerned has long been the lack of quality stat keeping, as well as analysis. Matt Hinton (currently Dr. Saturday) and Chris at Smart Football are great, and if CFB Stats didn't exist, this post wouldn't exist, but it ain't no Fangraphs and those fellas ain't quite Tom Tango, who literally wrote The Book on baseball. Not that it's a fair comparison.

I bring Tango up because his stat wOBA inspired this post. wOBA (weighted On Base Average) is basically on base percentage gone plaid. Instead of dividing times on base (1B+2B+3B+HR+BB+HBP+ROE) by plate appearances, you decide how valuable in terms of runs each of those individual events are and then proceed (hence weighted). OBP is transformed into runs per plate appearance. Multiply times total PAs and you have the runs that batter was responsible for in that season. And scoring (or preventing) runs are the bottom line in baseball. In sum: bases get you runs get you wins. In football, it looks like this:

Yards - Turnovers = Points

This isn't exactly groundbreaking. It's a fundamental assumption behind Dr. Saturday's Life on the Margins, iirc, and I'm pretty sure this is what I'm going to find in Pete Palmer's Hidden Game of Football if and when it eventually ships to a2. And it's sorta-kinda what David Romer did, though not nearly exhaustive. The theory is good. The actual arithmetic is kind of annoying and is summarized in the following paragraph. Feel free to skip to the part where we find out just how crippling the impact of Nick Sheridan was and how much worse it could have been.

The key to being able to do this yourself is to figure out yards and turnovers in terms of points. I ripped the drive logs of every Big Ten conference game in 2008 from Yahoo. That'll give you yards/point, which came out to about 15. Then I plotted, in buckets of 10 yards, the percent of drives that resulted in a TD or FG based on the drive starting field position, except the last 30 yards which I averaged at the opponent's 15 due to relatively few samples.* This gives you average expected points based on field position. That plus average field position equals the average value of a possession, which is what you lose in a turnover. Not only that, but you give expected points to your opposition. According to my math, an INT was worth about -4 points. Thus points per throw is (Yds/15 + INTs*4)/attempts.

Feel free to comment

I Am Not An Expert. If my math is off, then suggest different constants/methods. They pass the sniff test to me; I ran assorted regressions on excel to test assumptions and it looked right. I'd be glad to share the drive chart database. Onward...

The Part Where We Find Out Just How Crippling The Impact Of Nick Sheridan Was

go here

It's sorted by pts/attempt, the relevant measure. Average was .33. Mr. Sheridan was dead last with those over 50 attempts with .15 points per attempt. An all around average team wins 4 games. The results indicate that an all around average team that replaced its average quarterback with Nick Sheridan would win 2 (converting to wins over average is easy enough). But it would also have tremendous team chemistry and at least one valedictorian. Wins aren't everything.

Also, check out Terrelle Pryor's numbers. Remember, this is just per throw. Rushing and sack yards are not included, nor is it defense adjusted. Having rewatched the Texas and Michigan games in HD (being able to see the d-backs helps), I was impressed. Tressel used the threat of Wells inside and Pryor's skills when bootlegged on the edge to great effect. The playbook seemed cut down, but his athleticism made it work. The sack numbers (scroll right in the g-doc) and somewhat inconsistent mechanics are the most glaring issues, but they were exaggerated by a bad pass blocking unit in front of him. In conclusion: barring injury, Pryor is going to be a terror. Surprise! Rivals #1 overall prospect in 2008 is projected to dominate. At least he'll probably be gone after his junior year.

*It's a shortcut and it probably understates how valuable possessions that start inside the 15 are. I actually think inside the 15 the function is probably no longer linear. I'm also sorry that this is isn't the most thorough or transparent presentation. It's a start though.

  • colin's blog
  • Login or register to post comments

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
February 13th, 2009 at 11:47 AM | Wasn't Mr. Sheridan (Score:1)
His Dudeness
His Dudeness's picture
Joined: 11/24/2008
MGoPoints: 13558

appointed our #1 QB option out of Spring Ball?

Calculated miscalculation by RR or just a simple mistake?

UH-OH!

or uh, Duder, or El Duderino if you're not into the whole brevity thing.

  • Login or register to post comments
February 13th, 2009 at 1:51 PM | Remember Rich's comments about Sun-Fri not showing up on Sat? (Score:1)
1M1Ucla
1M1Ucla's picture
Joined: 08/12/2008
MGoPoints: 53

He was likely referring to his quarterback play -- Nick just seemed to fold in the games (save Minnesota). Without question, he was put in some really untenable spots to get his experience. Just count up the number of times he went onto the field with the ball inside his own 15 yard line. But I really think the game was just too fast for him. Watch his fakes with the ball, his footwork -- he rushed everything, couldn't get comfortable. I'm sure I'm along in this, but I think if Nick were (and Steve, for that matter) had taken a more typical route to the field, not starting until Jr or Sr year, they would not have been less effective than the kid at OSU last year or any of the NU, IU, Minn or MSU quarterbacks. Among those guys, Nick and Steve would have been in a relatively comparable cohort. A comparison I'd like to see would be those guys vs all other freshman qb starters in the nation, or vs second-stringers with no starts across the nation.

"You don't need a Blaupunkt, you hayseed. You need a curveball!" -- C. Davis

"You ain't gettin' that cheese by me, Meat." -- C. Davis

DAJ

  • Login or register to post comments
February 13th, 2009 at 2:28 PM | Sheridan was only marginally (Score:1)
Yinka Double Dare
Joined: 06/30/2008
MGoPoints: 1905

Sheridan was only marginally better than "horrible disaster" in the Minnesota game too. The only reason we think of that being a good game for him is because Minnesota dropped at least three of his throws that hit their defenders right in the numbers, all of them should have been picked.

  • Login or register to post comments
February 13th, 2009 at 2:50 PM | Minnesota was right with us for nearly worst in the Big Ten (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

at Pass D per my g-doc sheets. Fortunately Indiana managed even more suck.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 11:47 AM | "Pryor is going to be a (Score:1)
Glen Masons Hot Wife
Glen Masons Hot Wife's picture
Joined: 07/02/2008
MGoPoints: 1115

"Pryor is going to be a terror. Surprise! Rivals #1 overall prospect in 2008 is projected to dominate. At least he'll probably be gone after his junior year."

What, about his floating-duck throws, makes you think he'll leave early to be an NFL quarterback?

  • Login or register to post comments
February 13th, 2009 at 12:03 PM | his being a freshman (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

and a freak as far as speed/size goes. he's probably never going to be especially aesthetically appealing.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 12:18 PM | He said he would take the NBA (Score:1)
Brodie
Brodie's picture
Joined: 11/19/2008
MGoPoints: 3454

He said he would take the NBA over the NFL.

When your team is winning, be ready to be tough, because winning can make you soft. On the other hand, when your team is losing, stick by them. Keep believing. -- Bo Schembechler

  • Login or register to post comments
February 13th, 2009 at 11:59 AM | YPP (Score:1)
stubob
stubob's picture
Joined: 08/20/2008
MGoPoints: 1263

I had briefly examined Yards Per Point earlier this season to determine offensive efficiency. My conclusion was that it may be useful for overall offensive efficiency, but week-to-week it's too variable of a predictor. I should re-run the numbers for the top 25 now that the season is over and see if the best teams have the highest YPP.

My reasoning being that a good defense and a "lucky" team would have 1. , on average, better field position and have less distance to go to score, and 2. manage to convert more chances into points of some kind. I hadn't thought about using it as a metric of individual offensive efficiency, but I like it.

It seems biased toward high-scoring teams, but I guess that IS a mark of offensive efficiency. If you've got Missouri putting up 60 points per game on 500+ yards of offense, it's hard to argue that that's not the best offense in the country. Now, to be fair, it should factor in the average defensive yards per game or something, so blowing out West Texas Teacher's College doesn't skew the numbers.

I guess it's a simplified calcuation of Passing Efficiency, but just as useful.

"Why would you ask a dumb question like that?"  -Lloyd Carr

  • Login or register to post comments
February 13th, 2009 at 12:06 PM | on a game to game basis (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

you're not going to get anywhere near a useful sample. i've run both offense and defense numbers and gotten a Pythag type number and it did a pretty good job predicting 2008 results, actually.

this was really a preliminary post. supposedly, SBN is going to get a college football sabr site up and running. that would be a big help, since i'm already drowning myself in spreadsheets.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 1:34 PM | lots of games (Score:1)
stubob
stubob's picture
Joined: 08/20/2008
MGoPoints: 1263

I recognized that as a problem fairly quickly: year-to-year, the stats wouldn't transfer very well (too much variation in team), and you need enough data to make a reasonable prediction. With only 12-17 games, there's too much variability.

I think having 162 games makes baseball just much more useful for statistical analysis. Your sample size is 10x what it is for football.

I got flamed for this before, but I also think that the simplicity of the outcomes of baseball also helps statistical analysis. Football, basically anything can happen on any play. Offense scores, defense scores, anything in between. Baseball you've got: ball, strike, out, walk, hit, run.

But good post, I'd be curious to see the top QBs using that and compare it to the Passing Efficiency stats (not that PE is the gold standard).

"Why would you ask a dumb question like that?"  -Lloyd Carr

  • Login or register to post comments
February 13th, 2009 at 2:13 PM | having actually seen the year to year data (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

i have to say the amount of variance and flux that everyone is talking about is overstated. it looks like a very stable population to me. you have to remember that the baseline here is plays, of which any one offense gets at least 60 of per game. it's not that big a deal.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 7:02 PM | PPD (Score:1)
stubob
stubob's picture
Joined: 08/20/2008
MGoPoints: 1263

I think you're right, points per drive is probably a more useful metric. Looking at it from a game perspective, there's not enough data, but per drive (or per play), you have a lot bigger statistical set to draw from.

I may have to play with that and see how it looks. I'm still not sure how to compensate for weak competition, so the Florida / /Oklahoma game properly represents the level of competition.

"Why would you ask a dumb question like that?"  -Lloyd Carr

  • Login or register to post comments
February 14th, 2009 at 8:03 PM | that's why i did this by conference (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

it seemed easier to control. if you have an easier means to get the per play/per possession data, i would definitely go conference by conference and then make weights by looking at OOC games. i did the drive log rips by hand, c&ping my ass off, so i'm not making any commitments as far as that goes.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 12:01 PM | Pryor's attempts are still low (Score:1)
iawolve
iawolve's picture
Joined: 11/03/2008
MGoPoints: 2488

Granted, his resulting numbers look pretty good. I still think you need to consider how few passes he through. Part of that was a reduced playbook, part was that he can create with his legs. My hope is that he is not able to develop more as a passer. I was more surprised at how efficient Clark was which I guess should not be surprising to me considering they won the conference.

  • Login or register to post comments
February 13th, 2009 at 12:08 PM | btw, i've run numbers back to 2004 in the big ten (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

and provided none of the constants change a ton, Pryor's freshman year performance is the best by far. I think he was the only freshman to have a better than average performance over that time period.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 12:16 PM | I don't buy it. (Score:1)
PeterKlima
Joined: 08/24/2008
MGoPoints: 1424

Sorry, there is a reason football is not so "stats laden" as baseball and that is because football stats are EXTREMELY misleading.

A QB's performance depends, in LARGE part, on the team around him catching the ball, blocking, threatening to run. This is even more true when you ascribe the "teams points" to his statistics.

This is not a batter against a pitcher. While some QBs are better than others, looking at broad stats gives you more of an indication about how well the team performed. (although there is some reflection of the QB's performance).

I know all football stats have this problem, but this analysis seems to stretch it even more.

Personally, I prefer a UFR based system that ascribes some fault or credit (somewhat objectively) on one or two of the eleven players on the field.

Regardless, I am sure Nick Sheridan is a good guy, but he didn't do too well by any assessment.

  • Login or register to post comments
February 13th, 2009 at 12:23 PM | I'm not offering this (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

in a vacuum or as a be-all end-all. The types of details you're talking about aren't that hard to take into account when you assess a player. I did just that in my brief take on Pryor.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 1:35 PM | Actually, your premise that football stats are inherently (Score:1)
1M1Ucla
1M1Ucla's picture
Joined: 08/12/2008
MGoPoints: 53

misleading is fallacious, though your rationale is not. It's not that football stats can't exist, it's that they haven't been developed to a point that appropriately teases out individual performance from team, or even, system performance.

This calls out for a multi-variate-type of analysis that would permit the scoring positions' stats to be weighted with all the other stats on the field. Colin's analysis actually takes a net-effect correlation which is relatively effective for comparison's sake, but has a fairly large error bar.

One way to look at this is, as Colin suggests, in a VORP-type way -- where does each guy sit with regard to a mean -- and estimate their individual impact in replacement. The range of the statistic is wide enough (0.16 - 0.47, +/- some 50% around a mid-point of 0.32 or so) that it discriminates the extremes really well -- Clark = Sheridan times 3 -- that's a bunch.

Using a UFR to mediate the numbers makes a lot of sense, as it goes the direction of a multi-variate analysis, and would tend to make it more predictive -- take this guy out of that offense and stick him in another and see how he does. Less time on his back or running for his life, more Tacopants or less, and you'll see the difference. How much? Would sitting in the comparative comfort of the Penn State personnel make up the factor of 3 difference for Nick, or the factor of 2 difference for Steve? Not likely, but could it make up the factor of 1.4 for Steve vs Pryor? Hmmmm, I'm intrigued by that proposition because tOSU's O-line wasn't too special, but Terrelle had Beanie and the other guy, several competent + receivers, and his own escapability (which basically offsets the OL suck factor). Count me as a Pryor skeptic because I hate the way he throws -- I'm not sure his mechanics are fixable. Without Beanie, that offense didn't accomplish much.

So, I think there's a lot of room for improvement in football stats, but it's a doable project, despite your characterization that football is inherently different.

My biggest surprises?

That Steve's number wasn't negative and that Clark produces a point with every couple of throws.

"You don't need a Blaupunkt, you hayseed. You need a curveball!" -- C. Davis

"You ain't gettin' that cheese by me, Meat." -- C. Davis

DAJ

  • Login or register to post comments
February 13th, 2009 at 3:48 PM | I only understood (Score:1)
wolverine1987
wolverine1987's picture
Joined: 07/07/2008
MGoPoints: 2928

the last three sentences of your post.

"Everyone gets dumped Gabe. Let me give you some advice: a little coverup on your Adams Apple will make it appear smaller. Which will make you appear less like a transvestite." 

  • Login or register to post comments
February 15th, 2009 at 6:43 PM | Interesting (Score:1)
Ernis
Ernis's picture
Joined: 09/23/2008
MGoPoints: 2217

Agree on this being useful for comparison and not much else. Using this to compare Threet to Sheridan is pretty useful because the majority of confounding factors (that is to say, the entire fucking team) are held more-or-less constant between the two (obviously some error [for example, different opponents, variation within teammates on the field, etc.], but as long as you compare within-team QB's this stat isn't terribly misleading). It falls apart when you compare across teams.

I'm curious about your proposed method of multivariate regression analysis. I agree it could be done, but you have to consider the law of diminishing returns. At what point of time, effort, and sophistication would you be creating a meaningful statistical analysis? My thinking is that the value of those results would not be worth the time put into the method, compared to the understanding one can achieve simply by watching the game carefully.

It's like using calculus to plot out a ball's trajectory to catch it, instead of letting instinct tell you where to put your hand. At some point, your calculation is a barrier to successfully catching the ball.

  • Login or register to post comments
February 13th, 2009 at 12:27 PM | Awesome job (Score:1)
Cosmic Blue
Cosmic Blue's picture
Joined: 10/13/2008
MGoPoints: 183

As an engineer, i eat this stuff up. i wish i had more patience to do this kind of thing on my own. maybe ill be more inspired to do something like this next football season. there are lots of things you can build into this formula to give it more accuracy

  • Login or register to post comments
February 13th, 2009 at 12:27 PM | colin, (Score:1)
Michigan Arrogance
Michigan Arrogance's picture
Joined: 06/30/2008
MGoPoints: 4293

i like it, but i think peter brings up a good point about the nature of the game. it's really hard to separate an individuals worth from the team in this sport. that's why i just try to think about separating the offense's quality from the defense's and STs. points and yards per possession for an offense and defense are my thing.

Harvard: The MICHIGAN of the East

We're not arrogant, we're just better.

  • Login or register to post comments
February 13th, 2009 at 12:38 PM | Agreed (Score:1)
LJ
LJ's picture
Joined: 07/05/2008
MGoPoints: 618

And it's even somewhat difficult to separate offense and defense--few will contest that our defense last year was significantly hindered by the constant 3 and out's from the offense.

  • Login or register to post comments
February 13th, 2009 at 12:47 PM | I believe that's part of the (Score:1)
Little Bro
Little Bro's picture
Joined: 06/30/2008
MGoPoints: -3

I believe that's part of the theory behind adjusted statistics as well as just evaluating the why of a statistic. In adjusting the statistics to account for different defenses and offenses you can start to adjust where teams actually rank. Stats have to start somewhere before you can begin to make them better.

  • Login or register to post comments
February 13th, 2009 at 12:41 PM | this is bottom line stuff (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

and it hasn't been adjusted. but you guys some of the games. you can add your own mental context. this provides a baseline for actual performance.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 1:41 PM | also (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

what's the deal with spring ball? emailz plz

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 12:38 PM | in case anyone is curious: (Score:1)
Michigan Arrogance
Michigan Arrogance's picture
Joined: 06/30/2008
MGoPoints: 4293

Pts/poss: M Offense: -0.341

no, not really... but would you be *that* surprised?

Harvard: The MICHIGAN of the East

We're not arrogant, we're just better.

  • Login or register to post comments
February 13th, 2009 at 12:50 PM | This does seem like as (Score:1)
Starko
Starko's picture
Joined: 10/08/2008
MGoPoints: 540

This does seem like as significant statistic, but of the efficiency of the offense, and not necessarily of just the quarterback.

What may be more telling on an individual level is where two quarterbacks on one team have different results, as in the case of Indiana.

  • Login or register to post comments
February 13th, 2009 at 12:52 PM | I think we can all agree (Score:1)
Cosmic Blue
Cosmic Blue's picture
Joined: 10/13/2008
MGoPoints: 183

yes, this does not take into account all considerations. football does have a lot of other variables involved and it is not as statistics driven as baseball. of course sheridan wont get exactly 0.15 pts/throw. does that mean we shouldnt attempt to come up with metrics to show relative production? no, this can be a useful tool for evaluating player ability and should not be disposed of just because its not perfect

  • Login or register to post comments
February 13th, 2009 at 12:56 PM | IMO (Score:1)
gsimmons85
gsimmons85's picture
Joined: 06/30/2008
MGoPoints: 173

using something like this to evaluate past performances=good

trying to use something like this to predict future results/success/failure= very bad

www.gsimmons85.blogspot.com

  • Login or register to post comments
February 13th, 2009 at 1:09 PM | if you were making a bet (Score:1)
Cosmic Blue
Cosmic Blue's picture
Joined: 10/13/2008
MGoPoints: 183

and all you had to go on was this information (pretend you were in a coma all last year and noone told you about anything) and nothing else. would you bet that sheridan or clark (again, pretend both are playing) would have a better results/success/failure?

you go ahead and flip a coin cuz you dont want to use this as a predicter - ill take clark (and your money)

  • Login or register to post comments
February 13th, 2009 at 1:27 PM | what if i told you (Score:1)
gsimmons85
gsimmons85's picture
Joined: 06/30/2008
MGoPoints: 173

that clark was loosing his recievers, his entire ol, and his coach...

and that michigan had the top recruiting class in the nation, and returned all 11 starters..

i would think that would change the bet a bit dont you?

unfortunatley sports do not live in vacums where status quos remain, and nothing changes. Im not degrading the value of such statistics, im just meerly pointing out that it doesnt NECCESARILY corilate to future events.

www.gsimmons85.blogspot.com

  • Login or register to post comments
February 13th, 2009 at 1:37 PM | You'll be glad to know I already started on an (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

expected growth curve for quarterbacks from season to season.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 1:37 PM | totally see your point (Score:1)
Cosmic Blue
Cosmic Blue's picture
Joined: 10/13/2008
MGoPoints: 183

there are definitely scenarios where these kind of things fall apart - you described several. clark could get injured or decide to try throwing with his other arm for some reason. theres tons of ways things could change. im merely saying its not a worthless indicator and more often than not it would apply

  • Login or register to post comments
February 13th, 2009 at 1:46 PM | sure (Score:1)
gsimmons85
gsimmons85's picture
Joined: 06/30/2008
MGoPoints: 173

and obviously i could use the ole' "they dont play the game on paper analogy"...

there are patterns, but very often sport breaks patterns, thats why people watch it...

otherwise we would give a 300 hiter 3 out of ten hits, before his next ten at bats.

but what if he is aobut to go on a tear? or about to go into a slump?

most stats to most relavent coches today are great guides, but dangerous rules..

again not discrediting anything any of you guys have done that is really great stuff, or trying to discredit any other opinion

www.gsimmons85.blogspot.com

  • Login or register to post comments
February 13th, 2009 at 1:51 PM | even the most stat driven of sports (Score:1)
gsimmons85
gsimmons85's picture
Joined: 06/30/2008
MGoPoints: 173

can not account for the things on a game to game basis that makes all the difference in the world. What the person had for breakfest, the air temperture, the argument he had with his wife, the comfort level against a pitcher, the length of his cleats, the 3rd light in the second tower being out, the crick in his neck... etc etc etc.

good for guiding expectations? sure, accurate predictor of the future, obviously not.

www.gsimmons85.blogspot.com

  • Login or register to post comments
February 13th, 2009 at 2:03 PM | future results (Score:1)
dex
dex's picture
Joined: 06/30/2008
MGoPoints: 1883

right - if you are trying to use the numbers to predict exactly what ARod is going to do in a specific at-bat, your odds of success are low.

But, as I said down below, PECOTA has been a very reliable predictor of team success for upcoming seasons. It's obviously not right every time for every team, but it gets within a close range a significant portion of the time.

addendum:

I look at it the same way I do recruiting rankings. Trying to pin it down and use the rankings to say "this guy will fail" or "this guy will be a 1st round pick" isn't very accurate. But on the macro level, they tend to be much more accurate. Will Campbell might be a specific 5* that doesn't pan out, but most of the 5* guys from this year will end up being decent. Looking at individual events (like one at bat) or players (like Pat White) is always going to be impossible to predict.

great and omniscient Grand Poobah of the WLA

  • Login or register to post comments
February 13th, 2009 at 2:10 PM | Actually, even the current crude stats are pretty good at (Score:1)
1M1Ucla
1M1Ucla's picture
Joined: 08/12/2008
MGoPoints: 53

predicting game-to-game individual performance. A guy who completes 60% of his throws doesn't get there by hitting 30% one game and 90% another. All game-planning is based on tendencies and a DC prepping for Chad Henne was going to prep for knowing between 55 and 65% of his throws were going to be completed -- the game plan goes to trying to keep that at the low end and not let too many of that 60% get to the end zone.

The toughest parts to predict are the low-incidence game-changing plays: Beanie breaking off tackle for 60 yards and 6, #2 pulling an impossible INT on the sideline, #21 laying out and catching a 6-ball in ND's endzone -- every coach sets up to try to get that one or two plays for himself, and prevent the other guy from getting his.

I'd say one of the reasons football stats haven't advanced much is that they have been adequate predictors of future performance -- there just hasn't been enough incentive to develop much that is more sophisticated.

"You don't need a Blaupunkt, you hayseed. You need a curveball!" -- C. Davis

"You ain't gettin' that cheese by me, Meat." -- C. Davis

DAJ

  • Login or register to post comments
February 13th, 2009 at 2:27 PM | wow (Score:1)
gsimmons85
gsimmons85's picture
Joined: 06/30/2008
MGoPoints: 173

this makes even more of a mystery to me why you guys get so emotionally involved in games. Sounds to me like you already know what a person is going to do, what he isnt going to do, and how the game is going to end up before it even happens.

yet after the games i spend half my afternoon trying to talk some of you down from the cliff, and keeping you positive about things.

But then again maybe thats why some of you blame coaches for everything, you expect the stats to be true every time, and if its not, its the coaches fault. But when teams are expected to beat us, why woudl you get upset? i dont get it.

truth of the matter is that most time we expect stats to not play out. if beenie is averaging 100 yards per game, we are trying to keep him under 100... if chad henne completes 60% of his passes, AS A DC. I AM ABSOLUTELY TRYING TO KEEP HIM FROM THAT, because that is obviosly the strength of the offense. We try to take away strengths, we use stats to tell us what a team has been good at, then devise a plan to make them suck at it. IF we do it right we win, if we dont they win.... Teams win when stats dont play out, teams loose when they dont play out. Stats help me prepare for what i need to stop, and what i can expect to see, but often go out the window when the games begin becasue of adjustments, and other unforseen circumstances. Im not playing The state champions average for the year, when we meet them in the playoffs, im playing their stats for that game, if i shut down their running game, i have to be ready for what they will do next, reagardless of what their stats say. If their QB is off that night, i have to play for that tendecny, not the tendency over the course of the entire year. at least in my 25 years of playing at every level, and coaching a 4-a highschool to a top ten defensive season in the state, thats what i have seen.

but obviously i dont know everything otherwise i would be more famous than i am. And i very well could be wrong about everything...

www.gsimmons85.blogspot.com

  • Login or register to post comments
February 13th, 2009 at 2:36 PM | what? (Score:1)
dex
dex's picture
Joined: 06/30/2008
MGoPoints: 1883

I don't know if that was directed at me, but I explicitly said that using the numbers to predict specific events like "will player x complete this particular pass" or "will he strike out this at bat" isn't going to be super accurate outside of general stuff like "he's struck out 30% of the time against this pitcher so there's like a 1 in 3 chance he will" or something like that.

If I could use any statistic to predict outcomes of individual games with super accurate consistency I wouldn't be posting here, I'd be sleeping with high priced escorts on top of a pile of money.

great and omniscient Grand Poobah of the WLA

  • Login or register to post comments
February 13th, 2009 at 2:39 PM | um, (Score:1)
gsimmons85
gsimmons85's picture
Joined: 06/30/2008
MGoPoints: 173

no im pretty sure i posted it right under the post i was refering too. but whatever...

i dissagree with you about stuff too.

www.gsimmons85.blogspot.com

  • Login or register to post comments
February 13th, 2009 at 2:44 PM | yeah (Score:1)
dex
dex's picture
Joined: 06/30/2008
MGoPoints: 1883

my mistake, just wanted to clear it up.

and it's ok we disagree, because i can kick your ass.

/changes home address

great and omniscient Grand Poobah of the WLA

  • Login or register to post comments
February 13th, 2009 at 3:12 PM | Well, "sample size" is a huge (Score:0)
chitownblue (not verified)

Well, "sample size" is a huge issue. Over the course of 162 games, Albert Pujols will hit something like .330/.430/.580 and hit 40-odd homers. Fine. But that really isn't predictive for an individual at-bat, game, or even month of the season. So I think stats can predict an aggregate performance, if you can find the right ones for a given sport. But stats, like Chad Henne's 2006 performance, contained booms and busts that really can't be predicted.

  • Login or register to post comments
February 13th, 2009 at 4:01 PM | You missed my point and made it at the same time (Score:1)
1M1Ucla
1M1Ucla's picture
Joined: 08/12/2008
MGoPoints: 53

I won't trouble you anymore.

"You don't need a Blaupunkt, you hayseed. You need a curveball!" -- C. Davis

"You ain't gettin' that cheese by me, Meat." -- C. Davis

DAJ

  • Login or register to post comments
February 13th, 2009 at 4:43 PM | why 1um1ucla? (Score:1)
gsimmons85
gsimmons85's picture
Joined: 06/30/2008
MGoPoints: 173

am i unable to grasp your concepts, therefore are not worth conversing with? ... perhaps ill remember that next time you have a question about anything related to football concepts

www.gsimmons85.blogspot.com

  • Login or register to post comments
February 13th, 2009 at 5:03 PM | Steve Threet ranged from... (Score:1)
MRG
MRG's picture
Joined: 06/30/2008
MGoPoints: 176

...38.7% (Wisconsin) to 69.6% (ND) on his way to 51.0% (season). So maybe your right, a guy like Henne is more consistent. But most Big Ten QBs aren't 2nd round NFL draft picks.

Wolverine Liberation Army

Give me piss troughs or give me death.

  • Login or register to post comments
February 13th, 2009 at 1:42 PM | For those "this works in (Score:0)
chitownblue (not verified)

For those "this works in baseball, not football" people, this is a valid point. When the batter is in the box, there really isn't any "team" context to seperate his performance from. You need to account for the ballparks they play in, but that's relatively simple.

  • Login or register to post comments
February 13th, 2009 at 2:03 PM | i think it's mostly because we're at the beginning of this (Score:1)
colin
colin's picture
Joined: 07/01/2008
MGoPoints: 1332

if we write off the idea that this can't work in football, we'll never get to the point where we have people devoted to getting stats right. i mean have you seen pitch f/x? mlb releases that data free of charge to its fans. hit f/x is supposedly on its way and in general both mlb.com and milb.com are great resources. the ncaa doesn't have near that kind of commitment to its fans on this point, largely because it's not demanded of them. they only recently started recording sacks!

the long term goal, in my opinion, should be to improve the dialogue about college football.

...the Canadians make up for it with their emotion and classic ice-dancing skill.

  • Login or register to post comments
February 13th, 2009 at 4:17 PM | I agree -- that something is currently unknown (Score:1)
1M1Ucla
1M1Ucla's picture
Joined: 08/12/2008
MGoPoints: 53

doesn't mean it's unknowable.

To assert that it is amounts to the fallacy of relevance called argumentum ad ignorantium.

The coverage of football has been woeful in its lack of detail and inquiry. There is a lot of inside knowledge that doesn't get anywhere out into public at large, knowledge that people find exceptionally interesting. The sort of inside detail that "everyone" knows about baseball adds to its appeal -- don't swing at a first pitch breaking ball, the call between short and second with a man on first as to who covers the bag, signals from infielder to outfielder indicating pitch to influence positioning, tips by the pitcher on what pitch is coming or whether he is throwing over -- all that adds to the fraternity of baseball fans.

And a lot of that has been missing for the football fan. The average fan's lack of knowledge of coverages, blitzes, blocking scheme, reads and the like makes football fans a fraternity of emotion -- are they fired up enough? They don't hit hard enough, they should have run on second and 4 from the 20 because Bilenzeiwicz looks like he has the "hot hand". Blah, blah, blah. It's a fool's dialog most of the time -- that's actually why Brian's offering is such a success. It's an intelligent alternative to Sports Illustrated and the daily newspaper.

"You don't need a Blaupunkt, you hayseed. You need a curveball!" -- C. Davis

"You ain't gettin' that cheese by me, Meat." -- C. Davis

DAJ

  • Login or register to post comments
February 13th, 2009 at 2:32 PM | Plus baseball stats are (Score:1)
PeterKlima
Joined: 08/24/2008
MGoPoints: 1424

Plus baseball stats are controlled because throughout the season each batter faces most of the same pitchers in most parks in MLB.

College football is markedly different in that respect too.

  • Login or register to post comments
  • 1
  • 2
  • next ›
  • last »
Powered by Pressflow, an open source content management system
Theme provided by Roopletheme; sidebars adapted from Chris Murphy.