Look, some guys will just not like Doc no matter what he does. Just like some people will always think KC Jones just rolled the ball out and let LB run the team. I remember going to Vegas and watching this team prior to the KG trade and Doc just struck me as a tireless worker who knew the game and you could see his frustration when some of the guys couldn't get it.
I think it is unfair to judge Doc on the poor records before this season. Danny Ainge inherited a horrible situation and foresaw a 5 year turn around, but he needed a guy who would be willing to coach through that rebuilding. Doc was that guy. He worked hard no matter who was on the team or what their chances were of winning it all. He did a fantastic job of developing some of the younger guys who proved to be valuable trade pieces or contributors to #17. He was able to take a new roster, new coaches, and get them all to buy into his system. Yes, Ainge provided some top notch talent, but Doc still had to coach the team, and he did a great job. Great as defined as achieving the ultimate goal in the NBA.
Hubie Brown gave an interview where he talked about the nuances of NBA basketball and how even the most educated fan fails to understand just how much an effect the head coach has on the game, now Hubie is a coaches coach, no doubt about it, but I also think he knows what he's talking about. He gave Doc high marks - this was an interview with Jim Rome...
As for Doc's rotations, I have to admit to yelling at the TV for Doc to play certain guys and remove other guys, but he played the guys he wanted and it all worked out so I have to concede that maybe he knew what he was doing and going forward I will be a lot less likely to criticize him for his substitution patterns, though I do sympathize with that line of reasoning found in this thread and others, it was hard at times to understand why certain guys were left in games or other guys weren't played at key points, and I'm not just talking about the playoffs. But I think that's just a natural thing for C's and NBA fans in general to do. We do it with the Sox too - pull this pitcher, bring this guy in, etc. It's part of being a fan. Although I don't do it, frankly, at all with the Pats - I think partly because I acknowledge that my football coaching IQ is so lacking, and also because of Belichick's track record.
Bottom line, I've always liked Doc and felt he deserved better than he was getting from some writers, and fans and the C's success this year, I believe, was due in large part to Doc's coaching this season and the work he put in helping Ainge make the transition from where the team was (Vin Baker, etc.) to where they are now.