A new study tells you what you already knew.
But here's a scandal you may have forgotten about:
In one notorious case in 2001, the University of Georgia's assistant basketball coach taught a course on the Coaching Principles and Strategies of Basketball. Team members who took the course were allowed to miss class. One of the questions on the final exam—the only test that was given—was how many points was a 3-point shot worth? Everyone in the class received an "A."