I think the Packers need to be worried about their OL overall.
Every offense has some weaknesses, but most of the Packers weakness can be over come with schemes or tricks... but the major one that can't be is the OL.
I think a team with a very good (or great) DL can still run over the Packers OL like the Giants did last year, holding the Packers offense to 10 points giving the playmakers almost no room to make plays.
Or worse a team with very good and physical DBs, dares the Packers to pass the ball, and the DBs bump and bully the WRs all day, the WRs not willing and/or able to get off the physical blocks Rodgers has no where to go with it, which lets the defense focus on the running game. (which is what the Seahawks did last year).
Even before the horrible call
s by the refs... I was disappointed the WRs couldn't get of physical coverage better than that. I was honestly wondering if getting away from the bump and run with the Packers CBs, was making the Packers WR softer because they weren't used to it anymore.
Of course part of that is because Mike McCarthy fell into the Seahawks game plan trap... showing coaches a run D look, and getting the other coaches to call a LOT more pass plays than run plays, so the defense knows what's coming and don't have to think but just attack.