You can't waste roster spots on guys who aren't going to play this year, and are likely to transfer out before playing in the future. I can understand dropping Florida for Miami when they promised him a ton of money, and I can understand bailing on Miami when they didn't follow through. But he's now transferred twice since then without that excuse.
And bottom line, he has zero reason to come here. He would be blocked by a younger and even more highly touted player at a position where only one guy plays. We have no reason to offer him the money I'm sure he's looking for, and he has no reason to accept it even if we did.