IMHO this is part 2 of a 3 part act that will conclude with the NCAA accusing K State of violations in connection with Michael Beasley. Mayo, Rose and Beasley were all widely suspected of having amateurism problems, Mayo was the most obvious and got caught first.
one of the allegations against Rose is on at least 5 occasions an "associate" of his was allowed to fly on the team plane or stay in the team hotel. The name was "redacted" from the letter in the newspaper but everyone assumes it was Reggie Rose, Derrick's older brother and the guy everyone said was trying to cash in on his brother during the recruiting process.
UK has already said that Calipari disclosed everything to them before he was hired, that the NCAA said there were no allegations against Calipari himself so they do not expect this to have any impact on their hiring of Calipari as their coach.
So the interesting theory here is that Derrick Rose didn't sign with the agent that William Wesley is affiliated with, Leon Rose(no relation) but instead went with Arn Tellem's agency(BJ Armstrong is his agent). So the theory is Wes was pissed and leaked that Rose's test was not on the up and up. Ironically when Mayo's story broke he changed agents and hired... Leon Rose.
So Derrick Rose split with WWW, and OJ Mayo joined him.
I'll give an ETA of 6 months until there's a similar story about Beasley out there.