Don Nelson, 2nd winningest coach in NBA history dies at 86Don Nelson, the second winningest coach in NBA history, a five-time NBA champion as a player, has died. Don Nelson, the second winningest coach in NBA history, a five-time NBA champion as a player, has died. Don Nelson, the second winningest coach in NBA history, a five-time NBA champion as a player, has died. Don Nelson, the second winningest coach in NBA history, a five-time NBA champion as a player, has died. He was a three-time winner of the NBA Coach of the Year award (1983, '85, '92) but never won an NBA championship as a coach.