Kiffin, off the top of my head.... Tennessee, USC, the Raiders and Ole Miss. Granted he was fired from a couple positions but I would think once a coach gets in the right spot where he can win and establish regularly competitive teams - Saban at Bama, Smart at Georgia e.g. - there he would stay. Kiffin was well on the way to doing that at Ole Miss. OTOH, maybe the whole NIL system has ended that.
“OTOH, maybe the whole NIL system has ended that.”
The NIL and portal makes free agency look like a stable system.