Just when I thought I was I out, they pull me back in!
I don't know why I am such glutton for punishment, but I am finding this topic interesting (and not just in football sense, but statistically as well). I want to contribute one last time.
Many people on the threads have pointed out that just counting the class experience (basically age) is not enough, you need to count the actual games started as well.
I agree, games started should be part of this analysis.
AmazinBlue pointed out that Phil Steele has published a convenient list of all the games started by the players on the roster before the season began (http://www.philsteele.com/Blogs/2013/JUN13/DBJune08.html). Since the data is so handy, I figured I would go ahead and combine both sets of data and make a handy dandy XY Scatter chart. X-axis is the total combined number of Class Experience (i.e. Frosh=1, rs Frosh = 1.5) and Y-axis is the total number of previous games started.
As you can see from above, Michigan is in a better place than at least four teams (Auburn, UCLA, LSU, and Texas Tech), and surprisingly not that far away from Alabama.
Statistically, Michigan is within one standard deviation from the mean on Total Games Previously Started and just .16 away from one standard deviation for Total Class Experience. That, by definition, says Michigan o-line is not an outlier.
Again, the data says Michigan o-line is young, but not "outlier" young. There are other teams in top 25 who are just as inexperienced and a few who are even in a worse position. Blaming all of our woes on o-line experience does not paint the entire picture.