One-and-done players leave behind a mess for colleges

For every raucous cheer Derrick Rose elicited from fans of the University of Memphis men’s basketball team in his one season in 2007-08, he now draws a different cry.
Oh, no.
Rose, a rising star for the Chicago Bulls and the NBA’s rookie of the year this season, is the second one-year college player who left a scandal at his school — in this case allegations of academic fraud — on his way to the NBA since the league began requiring in 2006 that Americans be at least 19 and a year out of high school to enter the draft.
Allegations that former Southern California star O.J. Mayo violated amateurism rules by accepting gifts and cash from an agent’s associate rocked college basketball last year. Mayo now plays for the Memphis Grizzlies.