He'll get hurt, sure. Anybody that sells out like he does will have the tables turned on him eventually. But man, he helps. They use what he can do very effectively. The guy hammers people, but he's not a coverage guy at all. They just play him in his corridor in the right situations and he's fine.
I don't think they'll be able to keep him. if he keeps going, he'll get Erik Walden money and some team will try and make him a 3 down OLB.
That, he can't do.