The Boston Celtics really showed the rest of the NBA how bad they can get on the court during that brutal stretch in December. The schedule absolutely tore them apart and wore them down. they had no practice time to make any adjustments, and they kept expecting their individual talent to take over and win them games.
It looked like that stretch was going to cost them the number one seed, and the product they were putting on the court was the worst part. They were not intimidating to even the worst teams in the league, and they needed massive comebacks to get any wins.