Yeah, that's what I was noticing at the Wizards game last week, except Zeller couldn't keep Gortat from the boards, and Brown and Green both lost sight of Porter a ton.
I think it's the way to go -- not just because it seems to work getting the rebound, but because the Celtics now wind up with a guard collecting a defensive board, which helps transition offense, since you don't waste those 2-3 seconds of the possession where the big corrals it and eventually hands it to IT.