College athletes at elementary school reading levels

It is astonishing that NCAA college football and basketball teams have collectively generated $55B for their schools since year 2000. Since these athletes spent full time to practice, how do they graduate? Recent BusinessWeek has a story about athletes in UNC (1st public university in USA, 2005 and 2009 NCAA basketball champion and No. 30 in college ranking). 10% of the athletes (mostly UNC football and basketball players) are at 3rd grade level of reading comprehension and 60% are between 4th and 8th grade levels. How do they graduate? Believe it or not, even the prestigious school like UNC knows how to cheat!