Absolutely. The interesting thing is that "half court d" is only one small factor in what makes a basketball team great, and that if a team is good enough to render a "half court D" ineffective for a large portion of the game, I'd worry much more about the other facets of that team beyond "half court D", and why the other team was the better teamThey did indeed. You should probably take a closer look at why. It certainly wasn't the Celtics half court D.