San Antonio Spurs coach Gregg Popovich has become famous for resting his players during the regular season. The Spurs routinely allow their veteran starters to sit out games or spend long stretches on the bench in an effort to keep them fresh for the postseason.

But when they do take the court, the Spurs don’t let their aging stars idle. In fact, they race around the court like a bunch of eight-year-olds on a sugar high.

The...