I thought that the offense flowed better through Paul the last two games than it does with Rondo. Because Rondo is not a threat to shoot, he just dribbles down the shot clock behind the three point line. But Paul can drive or shoot forcing the defense to key in on him more. Then he can dish or shoot, which has worked well the last two games.
Giving the ball to Pierce works well in stretches, but it has three huge problems:
1. It wears him down to do that every game.
2. It is a lot more predictable than Rondo's game.
3. Against bad matchups (LeBron, Deng etc.) the offense will simply stall because the threat from Pierce himself isn't that big.
I think that having both Rondo and Pierce as options is great, and we have probably not used Pierce's ability as a playmaker enough.