THIS. In game coaching, while helpful, is trivial compared to what happens outside of games. It's figuring out how your team is going to play, and everyone's role, and getting buy in from the players, that makes a TEAM. This is the single area where Calhoun totally outdid all his competitors year after year (with the almost singular exception of his last season where his team never accepted his view of how they should play singularly and collectively).
I'm factoring in specific, game-day prep for a specific team on this, when I credit coaching. That's not all in-game, but it's
game specific.
Roy Williams never seems to have a specific offensive or defensive strategy.
Jim Calhoun did. Think of his plan against Elton Brand, for instance.
Also, because of specific game-plans, coaches often have to make adjustments. Those are important. A good coach makes solid adjustments (more Kromah in the second half against Galloway), and a poor one can't.
Your points are largely right, and in-game coaching matters very little versus
game specific coaching, but I take those as two peas in the same pod...and distinct from the aspect of coaching that is teaching your players to have a specific identity and players to have specific roles.
