INDIANAPOLIS — Kameron Chatman hit the shot, and then he disappeared. He bounced on his feet twice as he watched the flight of the ball in front of his bench, and when it dropped, he made a half-turn to his right. Then he was gone, swallowed whole, falling back into the chairs as he was smothered by one Wolverine and then another and then another until he was buried so deep in joy and catharsis that he could barely breathe. An arena security guy in a black shirt looked on from arm’s length. Nobody would’ve blamed him if he thought the boy who saved Michigan needed a rescue himself.