According the brilliant knowledge I have heard from some people, the reason blacks graduate less than their fellow white players is that blacks are superior athletes and all of them leave early to go to the NFL and NBA. Whites don't have academic scholarships, not athletic ones, and are only on the team to raise the team's GPA and graduation rate. They don't go to pro sports which are for blacks only, and graduate on time and get a normal job. Thus the disparity in the graduation rate.
Of course this is bunk because 50% of all black players are not leaving early to go to pro-sports. There just isn't enough room for them. They are leaving school due to not getting the job done academically. It's not like there aren't a million resources for them to succeed in the classroom. You can bring a horse to water, but you can't make him drink.
One thing that should be noted is the high numbers posted by Navy, Northwestern, Stanford and Air Force. Schools would do well to stop recruiting the bottom half of black players and replace them with any white players. That will improve their graduation rates dramatically. Those schools that were mentioned still have blacks, but they are just higher quality blacks and do well compared to the ghetto thugs that nearly all schools recruit.