Kinda getting off the subject here but...
Kirby reminds me a LOT of Will Muschamp. Both young, both blossomed under Saban, learned his philosophy, both are very energetic and loved by their players, and they remain close friends today. Obviously, Muschamp has moved on and gotten some other gigs and varied experience, but Smart has had offers to move on too, and he hasn't taken them. I think it is obvious he loves working with Saban and loves being at Alabama. I think 3 or 4 years from now he is going to be one of the hottest names out there, like Muschamp is today. Also, when Saban's time is up here, and he retires to Lake Burton, it wouldn't surprise me at all to see Smart as the possible successor. But that is WAYYYY down the road... so it really isn't worth pondering.