Comparing B1G QBs this season so far

I was looking at B1G QB stats and figured it was interesting enough.  All stats are from the NCAA (so not opponent adjusted) except QBR (which is adjusted) from ESPN and fumbles from ESPN game logs.  I didn't consider backups or starters at the beginning of the season, so for their respective teams I consider Kim (MSU), Jackson (Ind.) and Hill (Iowa), whom despite appearing in 6 games doesn't have enough stats to qualify to be counted in NCAA lists or ESPN's QBR season list. but see below.  

1.  JJ McCarthy (Mich.) -- He leads the country in QBR, second in the NCAA"s passing efficiency, 3rd in the country in yards/attempt.  He also leads the B1G in rush yards/carry (sacks included).  What holds him back from an even bigger gap is that his 3 fumbles is one more than the median of the 14 QBs counted, and he doesn't have shiny totals because his 20.3 attempts per game is higher than only Haarberg (Minn.) and Hill.  The other thing to note is his consistency.  He had 1 bad QBR game (Bowling Green at 11.2).  His second worst was Indiana, but at 84.4 if that were a season average it would rank 8th in the country.  All the rest, 91.9 or above, would rank 1st.

2.  Kyle McCord (OSU) -- He's a clear second in the B1G, ranking 6th in QBR.  He's 15th in the country in passing efficiency with 9.7 yards/attempt, 10th in the country.  If you're like me you wonder what would happen if his opponents' secondary coaches would whisper in their safeties' ears, "stay deeper than deep."  He only has 1 interception and 2 fumbles.  His completion percentage, 64.1% is ok, and his -1.2 yards/carry is second worst in the B1G.  Perhaps, that's why Day brought in Brown to run the ball at the goal line against Purdue.

3-4.  Drew Allar (PSU) and Taulia Tagovailoa (Mary.) -- Clearly 3rd & 4th in the B1G.  How you rank them is a matter of taste/weights.  Allar is 24th in the country in QBR, Taovailoa 26th.  Allar is 43rd in efficiency, Taovailoa 42nd. Allar has a better completion percentage at 65.2% to 63.9%, but weaker yards/attempt 6.9 to to 7.7.  Allar hasn't thrown an interception yet to 12 touchdowns.  Tagovailoa has 5 interceptions but 16 touchdowns.  They're about the same in rushing, 2.3 yards/carry and 2.5.

5.  Gavin Wimsatt (Rutg) -- I know, right?  His QBR is 63rd in the country, 15 QBs in the country better than the next B1G QB (Kaliakmanis, Minn.).  He has one of the worst passing efficiency figures in the B1G at 114.2, but he's 3rd in rushing at 3.8 yards/carry with 4 touchdowns and 0 fumbles.  His yards/attempt at 6.5 is in the middle of the range of the non-B1G 4 (4.4 to 7.2), though his 50.9% completion percentage is probably what you're thinking of when you think of Wimsatt, if not some of his 4 interceptions.

6-13.  It's just a mess.  As noted Kaliakmanis is 6th in QBR (78th in country), despite an abysmal efficiency statistic, 2nd weakest in the B1G among the starters at 110.8.  Perhaps, ESPN's opponent adjustments are doing work here.  To his credit he hasn't fumbled yet.  Haarberg (Neb.) is running 5.1 yards/carry, but also has 6 fumbles.  Altmyer (Ill.) has the best efficiency figure of this mass, though 127.7 isn't anything to write folk songs about.  Card (Purdue) is the other guy with an efficiency statistic above 120 (121.1), but he also has 6 fumbles to go with 5 interceptions.  To just be complete for their national QBR rankings: Morcecai (Wisc.) 82nd; Altmyer 88th; Haarbertg 94th; Card 96th; Bryant (NW) 103rd; Kim (MSU) 10th; and Jackson 114th.

14.  Deacon Hill (Iowa) -- Singling him out for the sheer majesty of his ineptness.  His 70 attempts and 9 rushes aren't enough to get ESPN to publish his season QBR.  But, he's the anti JJ McCarthy, with 1 good QBR game against Western Michigan at 83.1.  The rest read 1.5, 6.6, 23.8, 2.0, and 6.2.  For perspective, the QB last in the country in QBR for a season is 17.7 (Alex Flinn of East Carolina, ranking 134th).  His passing efficiency figure is 79.6, 40.2 points below the second lowest of the starters in the B1G.  His 9 carries for -53 yards is not going to save him.  He also has 3 fumbles.