Another thing to look at is the situation their teams were in at the time of departure.
Minnesota went 32-50, missing the playoffs for the third straight year in 2006-07.
Seattle went 31-51, missing the playoffs for the second straight year in 2006-07.
Meanwhile...
Cleveland went 61-21, losing in the Eastern Conf. Semis in 2009-10. The Cavs also had 5 straight postseason appearances and back-to-back 60+ win seasons.
Oklahoma City went 55-27, losing in the Western Conf. Finals in 2015-16. The Thunder has made the postseason 6 of the last 7 seasons.