I agree with Wolverheel’s objection. Whether or not it is a common practice does not mean it is a good practice. I suspect we would have a hard time finding a lot teams that play 7-10 as sparingly as JB, however.
Walton and Irvin were both in the top five of minutes in the big ten.
If you add together the minutes JB gave to last year Michigan’s 7th, 8th, 9th, and tenth man and compare those minutes to the sum of the 7th man -10th man minutes for the final four teams, then it looks like JB really does play his bench significantly less than other coaches (at least compared with last year’s final 4 teams).
Compared to the players of those other teams JB played his 7th man the least, 8th man the least, 9th man the least, 10th man the least.
I am not sure how we compare with everyone else…My intuition seems to be confirmed, at least in a small way, by that small sample size…