Listening to Magic Johnson talk about basketball is a great reminder to me that having played the game at a high level in no way makes you a quality analyst.
He was poor at coaching as well. 5-11 record
Bird aside, and Isiah at times in Indiana, most great players are terrible coaches and/or executives because they're likely impatient and/or are unable to recreate what worked on their teams because they aren't on the court, in charge, so it's really all about control. I think. Some guys simply can't relate to their players, but it depends entirely on the individual.
Not just Bird, all Celtics do fine: Bird, McHale, Ainge, Tommy, KC Jones. Just so happens Isiah and Dumars are idiots.
I don't think Dumars is an idiot. You have to do something right to make your team the superpower that they were for 6-7 seasons. Having said that, yeah, he made some really dumb moves, but overall he was pretty good. I mean, he took Arron Afflalo in the late first round in 2007 and traded for Stuckey, but none of his coaches ever played their young guys, who would have helped tremendously, imo. There's no excusing the 2003 draft, letting Larry Brown go, or opting to save money after their title and not bring back so many key contributors off their bench (Okur, James, Williamson, etc.), though. McDyess was a great addition, but if you added him to their bench for 04-05, they win it all, imo.
Isiah, yeah, he's a moron, but he did draft really well, for the most part, and honestly, if you look at the type of team he was trying to make with a 4/5 duo of Randolph and Curry, that's pretty much the same formula Memphis used, the key difference being, of course, that Gasol can protect Randolph and the rim, while Curry couldn't do much of anything defensively, but the model was a good idea.
I'm not sure that I would put KC Jones in that group, however. Plus, not all Celtics do well in the coaching realm - look at Russell. He's the prime example of what I was talking about. You forgot Dave Cowens, btw. Now he was a great one, both as an assistant and a head a coach. Don't forget Silas either, who excelled in the same way. Don Nelson, too. Am I forgetting anyone? I wasn't watching when ML 'coached,' but then again, he wasn't a great player, so he only fits into the Celtics category, unfortunately lol.