7) Boston CelticsStrengths The Celtics have one of the best coaches in the league in Brad Stevens, t. ”Pittsburgh has had a mere three head coaches since 1969. A rogue Portland fan still relishing the club’s triumph of 2015 might also have been the guilty party. 11) Washington WizardsStrengths John Wall and Bradley Beal remain one of the best backcourts in the league, even if they don’t quite get enough recognition for it.