I would have to say no freakin' way to Larry Brown, even if he might very well be the best basketball coach alive, he is way, way too much of a...what's the word...we just don't need a coach that puts his own interests above the team's, like, for example, twice openly discussing other jobs while under contract with a franchise while he's in the middle of a playoff series.
I think Rick Carlyle gets another year.
I also think that former interim coach after Obie is still on the payroll for the C's in some scouting capacity or whatever. So there is still some loyalty.
I would actually LOVE Kevin McHale as a coach. As a coach, he did well in Minny, I thought. He understands the game very well, and explains it well, too (I enjoy his breakdowns on NBATV). He "gets" champion level play, and also "gets" developing young players. I could imagine him saying something like, "If you can't play a young prospect a few minutes a game and still make the playoffs as a high seed, you're not really a contender anyway." He has that kind of practical thinking.
Prediction: Doc rides out the big 3 years, then McHale becomes the perfect coach for the C's to keep fans' attention just in case the team has to "rebuild" for a year or two, with Austin Ainge as lead assistant.
All in the family...