It'll never happen of course but if Doc decides to retire, I would love Ainge to coach. Sort of a clean up your mess type deal in a way but he was also a fantastic coach in Phoenix. I trust that he's a better coach than Doc.
In my fantasy, Doc decides to take a sabbatical, Ainge steps down from his current position to coach and a GM who values ballhandling, rebounding and shooting takes over the reins of this franchise. Heck, I don't know if Mike Zarren is that guy but I wouldn't mind giving him a try over Ainge. I'll be happy like a clam.