Doc Rivers is still riding that Celtics title, with 3 hall of famers, maybe even four if Rondo gets there, seems a little bit tough for him to be HOF to be fair, but it looked like he would be. I think it is clear that Celtics team was stacked and of course they did alright. With a very on fire Ray Allen (who won with Lebron later on as well) KG and Pierce, it is really obvious that they would win, they could have lost as well but the difference maker wasn't Doc.
Ever since that year, he has been going from team to team around the league and failing, he has never won anything ever, the way he handled Sixers job was good enough for me to consider him not a great coach to be fair, and I think it has to be something that would not be easy.