Yes he absolutely has to play better. It's funny to say that about a guy with god like numbers for the Bulls series, but i'm sure he would tell you he didn't play well against CHI.
Make no mistake, Chicago has a pretty damned good defense, and Butler may win a DPOY some day. I don't see that with Atlanta, or Carrol. Not to say they are terrible, but it's going to take them a lot of work to guard LeBron as well as Chi was able to.
Gives me some hope, and my god I hope Kyrie is Kyrie. Having a few days off hopefully helped him a lot, because we absolutely need him to win his match up to win the series.
I mean look at how much trouble they had with the Wiz. Pierce is a shell of himself, Wall is not nearly as hard to guard as Kyrie, and Nene played like a scrub in the series. We have a shot, hopefully a good one.