The problem is, a lot of y'all look at it and you see the Celtics, a mediocre team and you see David Lee, a guy who's made a couple all-star teams, had a couple 20/10 seasons and figure "Oh well he should definitely be playing". Nah.
The Celtics have a -2.8 Net Rating with Lee on the court. A +6.0 Net rating when he's off the court.
Hence, why like I've repeated throughout this thread, you are not going to find many Celtic fans complaining about him being benched. The only people who think this is outrageous are non-Celtic fans who likely haven't watched half the team's games.