The Oklahoma City Thunder, Cleveland Cavaliers and Boston Celtics combined to win 193 regular-season games. That sort of dominance from three teams at the same time is exceedingly rare. This season was the first since the 2008-09 campaign in which at least three teams won 60 or more games. Their dominance over the field was pronounced. The Thunder earned the second-best net rating in NBA history by outscoring their opponents by 12.7 points per 100 possessions this season. The Celtics (+9.4) and Cavaliers (+9.2) weren’t too far behind. But the fourth-place Timberwolves? Their net rating was