Karl Towns had been on the floor about two minutes when Dominican Republic coach John Calipari — indeed, that phrase still sounds a little curious — took the occasion of an opponent’s free-throw attempt to call his youngest player toward the bench. Calipari wrapped his arm around Towns’ waist and said, almost bemused, “You’ve got six points. You’ve given up nine. You’ve got to rebound now.” Calipari was not exaggerating. He had the accounting exactly right.