Defensively, these Celtics keep disappointing (Bobby Manning): It was the mark of a great team a year ago. This year, it's been an issue for a mediocre one. Isaiah Thomas' absence mattered, but wasn't nearly as influential as the defensive issues the team faced tonight. It's the same conversation we've been having all season. Sure Kawhi Leonard looks like Michael Jordan out there at this point. Dishing the ball around, setting himself up off the ball to mix Jae Crowder with a few tight dribble moves before turning and hitting an impossible hook shot. The point is, if these Celtics are going to make noise they have to play up to displays of talent at this level.