No, although I'd say we play about the same.
Players get more touches without Rondo which causes them to feel more involved and gives them a better chance of getting hot.
This also consequently inspires them to play harder on defense.
We get into our plays quicker without Rondo pounding the rock, and go from one play to the next quicker because we don't have to get the ball back into his hands.
It makes our offense much more unpredictable, which makes the other team think harder on defense and make more mistakes.
Pierce and KG are both elite passers that are perfectly capable of running an offense. With Rondo they are almost reduced to pure shooters/scorers. When they are making plays for others it really opens up more and easier scoring opportunities for them like they've been used to throughout their careers (and in 08).
Rondo's excellent shooting has been a huge asset for us this year, but it still doesn't do as much for an offense as a historic floor-spacer like Terry that can keep defenders from helping off and going under picks.
No, we aren't better, but I think with some effort we can easily maintain our current level (a middle of the pack regular season team that can beat any team 4 times in the playoffs).
The biggest loss will be his rebounding, which everyone will have to step up, mainly Sullinger, KG, Green, and Lee.
Leaves a smaller margin for error, but this isn't anything like losing KG in 09. This isn't even as devastating as losing KG or arguably Pierce now (our best defender and scorer).