The Celtics last night lost because they couldn't score. It's as simple as that. They held the Wizards to their lowest point total in 6 weeks, only had 10 turnovers, and lost because they couldn't put the ball through the hoop.
Meanwhile, Jaylen Brown, who's jersey I wore to the game last night, so I'm obviously a fan of his, went 0-5 in his limited playing time, and was also scoreless the prior game. I don't see how he would have been the panacea to what ailed the team last night (missed shots and questionable at best officiating).