I think the Celtics defense would benefit from more Perk.
Last year in the playoffs, he provided 11, 11 and 2.6 in 36 minutes a game. He was the defenses back bone.
Now, he is playing closer to half the game.
I think if he was to play another 5 minutes a game (about 30 per game), the Celtics defense and rebound in going to improve.
Watching the Celtics, it still looks like like Perk is the backbone of the defense. KG is the leader that makes the rest of the defense go, but Perk is the backbone. What he does out there allows KG to be more effective coming from the backside.