Education Secretary Arne Duncan on Wednesday said poor graduation rates among some college basketball programs would improve if the NCAA linked postseason play to the number of student-athletes getting their diplomas. “They should make a rule that if youre below a certain point, you dont qualify for the tournament,” Duncan told reporters at the Capitol. “And I guarantee that would fix the problem in a hurry. I promise you that. Wed fix this thing overnight.” Duncan, who played basketball at Harvard University, said 25% of mens basketball teams in last years NCAA tournament graduated less than two out of five players.