For the Warriors, Practice Makes Perfect Silliness

Photo Stephen Curry made a 62-foot jumper in the Western Conference semifinals against the Memphis Grizzlies. Credit Mike Brown/European Pressphoto Agency OAKLAND, Calif. — The Golden State Warriors are a joy to watch. Their offense is based on movement and spacing, all five players working together to create open shots. If Coach Steve Kerr is the conductor, Stephen Curry is his soloist, a 6-foot-3, 190-pound virtuoso in high-tops.

So their practices must be incredibly organized and disciplined, right? Laser-beam focus and all that? It is the only reasonable conclusion, given the way the Warriors steamrollered their opposition en route to the N.B.A. finals. But Golden State, whose…