It matters, to the extent that with the Bulls being without Rondo we absolutely should have beaten them 4 straight times.
So, in other words, we did what we were supposed to.
Two things tilted this series. The first is obviously Rondo getting injured. That meant we could hide IT on defense, Rondo was destroying IT. The second was moving Al to C. This meant no more Amir getting roasted by RoLo. Lopez was flat out abusing Amir, Horford pretty much played Lopez off the court when they were matched up.
Difficult to tell which was more important. But both played a key role in the turn around.