Last season, seven teams (Detroit, Cleveland, Washington, Charlotte, Orlando, Sacramento, Phoenix, and New Orleans) failed to reach 30 wins. The Celtics were 14-9 against them. By comparison, Indiana was 22-3 against those teams. Milwaukee was 13-11. Brooklyn was 23-1. Atlanta was 19-6. Chicago 17-8. Toronto 14-10. Detroit (one of those teams) was 15-5. Washington was 5-14.
The Celtics lost games against weak opponents that they shouldn't have. You could also interpret that as the Celtics winning games against strong opponents that they shouldn't have, but I tend to believe the Celtics under-performed last season.
With several young players and veterans fighting for playing time, will the Celtics play with more effort and energy against the worst teams? Even if they win fewer games, will we have less instances where we come away thinking that the Celtics lost a game they should have won?