Grantland asks and answers the question (with some excerpts from posts around here)...
http://www.grantland.com/blog/the-triangle/post/_/id/36030/is-michigan-t...
Their answer is...
This is a pretty shaky argument. The NCAA has minimum grades and test scores its football players must achieve in high school. Most football powers take the minimum standard as their own. Where schools like Michigan say they exercise discretion is by turning down marginal students who might have trouble staying eligible. But a 2008 Ann Arbor News investigation found that over a three-year period, one Michigan psychology professor taught 251 independent-study courses to athletes. The players earned a GPA in his courses that was a full point higher than their other courses. So even if Michigan admits better students on average, it’s not above using SEC-style (or Big 12–style ... or MAC-style) tricks to keep them eligible.


Good thing he didn't say "ACC-style."
Thanks Thorin/Mgovideo for avatar