The modern NBA punishes good teams who try to keep everyone together. The Oklahoma City Thunder are running the league right now, but on the horizon are difficult roster decisions. And the play of Ajay Mitchell thus far means Lu Dort is likely not long for the franchise.
Coming off of a championship, many NBA teams let their foot off the gas to start the next season. They know they are good enough to win, they got over the mountain, and the NBA season is long. What the Thunder have done to start the season is make it clear they are not "many" teams.