I do think our biggest challenge is going to be a team that blitzes very frequently.
Rodgers does handle pressure better than most quarterbacks, don't get me wrong about that, but it comes down to protecting him.
I've been thinking about the NFC Championship from 2009 quite a lot lately, (cause the Favre fans down South are still quite hung up on how vicious and dirty the Saints man handled him and how oh the Vikings were robbed by the refs). The very first play of that game, he had to throw out of bounds cause they were chasing him and nearly got him. Every time he released the ball, they still slammed into him, they kept Favre under lock down that entire game, he was getting his brains knocked out on every play.
A good example of Favre's Jekyl and Hyde is the Wild Card game we lost to Minnesota when he had 4 interceptions. There's still a video of it on Youtube I believe, and you see where the Vikings sacked him a few times and knocked the living crap out of him early in the game, he was never the same after the hits he took in that game, he started throwing picks, forcing the ball around, cause they had messed him up. The Saints did the exact same thing to him, Favre took the beating of his life in that game, and him being 40 years old surely didn't make it any better.
One big difference I like about McCarthy is even when Rodgers is under pressure, he has been trying to run the ball more. In the Giants game, even though it wasn't useful without Starks, he kept it on the ground, which opened up the play action passes. Sometimes play action can really throw a defense off and lead to big plays. Favre also had a big problem forcing the ball around when someone dropped his passes, as many times as Finley dropped it against the Giants, Rodgers still trusted to throw it a safer place rather than force it in double coverage like Favre did. That right there is why I think even with blitzing him, it creates problems, but he can still find a way out of it.