Seeing as he's underachieved at Nebraska, where they have unbelievable tradition, second to none facilities and they are the only game in town(state), I would be nervous as hell if I were a Nebraska fan. There is no reason for Nebraska not to be competing for championships every year.
I have to wonder if his personality is wearing thin in Lincoln, and that's why he's looking to get out. If he mellows a bit as he gets older, as most do, he could be a good fit at TN eventually. If not, as someone else said, he could have the Big One on the sideline.