He's up there with the best already. Does a good job managing egos and personalities, young and old. Gets the most out of his players - reclamation projects like Crawford and Turner have flourished under him. Offense is beautiful when it's clicking and he's implemented a defensive scheme that's excelling without an interior presence.
Comes prepared each game and calls the most creative ATO's in the league. Cool and even keeled on the sideline but a killer underneath. Got the team to buy into his philosophy and play for each other (and the ones that didn't aren't around anymore). Brad Stevens is the man.