BJ is Derrick Rose's agent. Rose made $5 million dollars this year. If we assume that BJ gets 5% as agent, that is $250,000. Now remember, NBA rookie contracts are slotted, so there is no negotiating them. So in effect, BJ got paid 1/4 million for ABSOLTUTELY NOTHING.
I don't know what else he does for Derrick Rose, and I don't know who else he represents. What I do know is that he makes more off of Rose's salary (which he doesn't put any effort towards) than he will make in one year of assistant coaching in the Big 10.