I really could only think of 4 or 5 current coaches that I THINK are top tier coaches and who would do better than the rest just about anywhere.
Saban heads my list, he's hard to ignore, and then Swinney I suppose. Patterson I think, Fitzpatrick. I'd give Mullen another year or so, but I think he belongs.
I was also musing about how Smart could make this list IFF UGA wins an NC in the next few years, and then he's on it, whether he's that good a coach or not. I don't really like that type of thinking (Orgeron).