If Freeze were to cheat at Tennessee (or any big program), he'd be more insulated and removed from it because we have more of an infrastructure here.
Ole Miss does not have the sophisticated booster system like an Alabama, Auburn, or Tennessee have. When you recruit kids to big time programs, the apparatus swoops in and just takes care of it. Ole Miss isn't as sophisticated, so they have to do things like getting the coaches themselves involves directly in payments. It's why SMU got busted but none of their biggest SWC rivals (like Texas and Texas A&M, who were doing the exact same things) did.