Some coaches aren't the nurturing rebuilding types. MDA is clearly in the Phil Jackson mold. When you give him players that are intelligent and capable, he'll guide them to more wins. He's not gonna eek out more wins with guys that aren't self motivated. I thought he would, but i've learned that he's just not gonna go that far. If the players put out that effort they'll do better, but like they did during brief spurts this year and last year. Now good players won't need the babying and play hard and well, more consistently. That's when MDA will shine, cuz then he can focus on the kind of things that will allow them to excel. It's how he can help a Nash to be even better by showing him the little things that can get the most out of his talents. Nash was already good, but with MDA, he became MVP level. That's what we're hoping for here.
Also it's not that he doesn't develop kids, cuz he's actually made a good number of his players better by giving them roles and focusing on their strengths so they could excel. ie, Barbosa, Diaw & Bell.