Popovich is the greatest coach of this era and one of the best of all time if not the best. But credit needs to go to Tim Duncan for letting him become that by being coachable. Duncan was a consensus #1 pick when he came out and he would have been the #1 had he come out the year before too. He was (barring injury) one of the few "can't miss" prospects that I've seen. But he allowed himself to be coached. Pop would yell at Timmy and he'd take it. Duncan set the tone for things. If your best player and perennial MVP candidate is going to let the coach ride him then everybody is. Tony Parker has talked about this. He was 19 coming in and Pop was merciless with him. But he looked at Popovich getting on Duncan and realized he just had to accept it and grow.
It was Pop and Duncan together that created the Spurs culture. And once they did they the Spurs could bring in guys that fit the system and had the attitude that they wanted. It was a synergy between star and coach that allowed that to develop. If somehow Popovich had LeBron instead of Timmy I don't think he ever gets to the level he's at.
Golden State is an interesting case to look at in terms of the impact of coaching. Outside of drafting Curry, Thompson & Green, the biggest thing that changed the Warriors into contenders was trading Monta Ellis, Epke Udoh & Kwame Brown for Andrew Bogut and Stephen Jackson, the latter of whom was flipped to S.A. for a 2nd rounder that became Ezeli. That deal moved Curry to PG (he and Ellis were both PG/SGs before) and Thompson to SG, it gave them a defensive anchor in the middle, and it let them finish the year bad enough (remember that Bogut was hurt) to drop deeper into the lottery where they nabbed Harrison Barnes.
Jackson coached them into the playoffs the next two years (into the second round and then an underwhelming first round exit) but they won 51 games that year. I don't think it was so much Kerr transforming them into winners as Jackson holding them back from reaching their potential. At least that was certainly the Warriors' front offices' opinion. And I think they were right. Kerr has done a fantastic job, but I think it's overstating it to say that he was the main reason for the Warriors improvement. Curry stopped getting hurt and became otherworldly. Thompson became a very good defender and even improved as a shooter/scorer. An extra year together, Draymond Green's emergence and the addition of finals MVP Andre Iguodala were all part of it.
We can differ on how much credit Kerr deserves but to me the telling part was that with Kerr gone from the sidelines Luke Walton guided the Warriors to a historic start. Unless we believe that Walton is a coaching legend himself then it does have to take a little bit of Kerr's shine.
Speaking of Lebron . . .
I like David Blatt. I think he's a very good coach. But he was forced to bend to LeBron's will. Blatt wanted to run some elements of the Princeton offense. LeBron didn't. And so the Cavs threw out that part of their playbook. James routinely waved off Blatt's plays, even saying so directly in one post game interview when he changed the final play himself. We didn't really get to see how good of a coach Blatt was because he was handcuffed by having to kowtow to his best player.
I agree that Duncan deserves some of the credit, but every relationship requires two partners, so Pop's deserves an equal amount as well. Without his iron hand, and control of the organization, it wouldn't have mattered what Duncan did. The truth is, Duncan fit the style of play that Pop's wanted, so from the get go, it was a perfect match. Most people say that with any organization, it starts at the top. I happen to agree. But you can't say it starts at the top, and then argue that whatever moves that are made have to be made with the approval of your best player. Your either in charge, or your not. I do think you have to take you best player into consideration, but you can't allow him to dictate your decisions. Your results will determine whether you were right or wrong.
Some would look at the Warriors as a miracle of sorts, but as I pointed out, if you have a plan, and know what your doing, your going to improve, and if you have some luck along the way as well, then you might have a contender. The Warriors made good choices in the draft. At one point, they realized that Ellis, and established, popular star, was holding back the potential of Curry. So they made a bold and unpopular move at the time, and traded Ellis. Bogut was a risky move because of his past history of being injured. Don't forget that they also drafted Harrison Barnes as well. So yes they did have some luck, but they had a plan and the plan worked. The question is, what is our plan?
I'm sure some people think that Kerr just lucked out and fell into a great gig. But he's a smart guy with lot's of experience, especially playoff experience. He knows a lot about winning. And hey, he's another ex-point guard, and PG's tend to make good NBA coaches. I think he's a better coach than he's given credit for. While the Warriors never missed a beat while Kerr was gone, you have to give credit to the organization he put in place. Or that someone put in place. It'll be interesting to see what the Warriors do this next offseason. Will they actually go after Durant, and totally change the complexion of the team, or will they try and bring Barnes back for another run. Personally, I think they need a Willie Cauley-Stein type player on the team. Dwight Howard maybe? Naw!