[...] a reserve guard on a Chicago team eyeing its third straight title, he experienced the physical toll overshadowed by Michael Jordan's iconic shot over Utah forward Bryon Russell in Game 6. Nearly two decades later, that memory has helped fuel Kerr's plan to rest his core Warriors players at times this season. The focus will be on preserving his team's energy for home-court advantage in the playoffs and, ultimately, an NBA championship. [...] after their record-setting regular season ended with a devastating 2016 Finals collapse, Warriors players recognize that staying fresh is key to the end objective. There will be little argument in the locker room if, in the name of winning a championship, Kerr benches certain starters. "It's a tricky issue on this team because people come out to see these guys play," said Kerr, who sent emails offering sympathy to three unhappy customers. A small device made by an Australian company named Catapult Sports, which each player wears inside a compression shirt on his back, helps the training staff monitor heart rate and workload. Because the NBA prohibits teams from donning technology in games, the information is limited to practices. After...