Here’s a sobering thought: The Spurs are 8-2, with the fifth-best point differential in the league, and they are basically screwing around.

OK, that’s an exaggeration. Gregg Popovich rarely screws around, even though it’s delightful when he does. But the Spurs are clearly experimenting, with an eye on reinventing themselves on both ends of the floor by the time the playoffs come around. It seems strange to redesign a team that went 31-2 in the 33 games before the Thunder rallied for four straight wins in the conference finals, but the redesign is happening, and it’s Popovich’s way of recognizing that the team got as far as it could with its pick-and-roll-all-the-time offense and just-above-average defense. The Spurs ran into a more athletic team that did enough defensively to at least limit San Antonio’s pick-and-roll devastation, and they found they didn’t have enough on either end to compensate. The Thunder are still there, the Lakers are a powerhouse-in-waiting, and the Heat should be monstrous in the spring.