Nobody is calling Jim Boeheim a crook or anything like that. He's a terrible manager of people in terms of maintaining ethical standards in an academic environment. He has operated like an absentee landlord, according to the NCAA, and at the level of big time college basketball, that's almost like being a crook, but not really.
Boeheim has plausible deniability--everyone who did things that were unethical in order to provide him the players that he needed to win did so under his relaxed management style. This means that he can threaten an appeal and stay where he's at and accountability will fall on others. That's a great scam if you can pull it off.