I thought the oline did great last year, even without Pouncey. Once they learned to play together and Le'Veon got some experience, they played great. I'm really not worried about the offense at all (as long as Wheaton can step it up). I'm comfortable with the line for the first time in years, love our QB, love our RB and TEs, love Antonio.
I'm worried about defense. We let a LOT got. We're still strong up front with the players that we kept, but Polamalu is losing a step and our pass coverage was horrible last year. We need a CB asap, maybe even two, but we don't have enough cap space to get a FA.
I just hope with the young talent we have on D, and the players that we're about to draft, Tomlin/LeBeau can get more out of the younger players than they have in recent years.