I agree. I don't understand why Perk is playing less than 30 minutes a game. It's true Sheed demands minutes, and Shelden has been earning them too. But Perkins is the anchor of our defense, and he's not bad on offense anymore, either. I think we're doing our team a disservice by not playing him enough. Especially when Sheed is throwing up so many bricks.
On the other hand, our offensive unit is at a disadvantage when we have not one, but two people on the floor who can't consistently hit a jumpshot - Rondo AND Perk. I think that's probably the main reason he hasn't been in more, especially at the end of the game.