On offense we've got Jason Campbell who has a ton of talent but that talent may never be realized because he's learning ANOTHER new offense and not being allowed to build on his progress from previous seasons.
We have one of the best running backs in the league in Clinton Portis but he's going to be 27 next year and we haven't found a way to build around our running game.
Mike Sellers is a good fullback because he can block, catch passes and run for short yardage. He's 33 though, and probably won't be able to contribute much longer at a high level.
We have a very good offensive line when they're on the field at the same time, but not ONE starter is under 30. How much longer can they be a good unit?
Chris

Our receiver corps is the worst feature on offense. Moss is the lone "star" but he's injury prone and has had two straight years of <1,000 yards. He's also only caught 6 and 3 touchdown passes the last two years. Speed is Moss' game and it's possible he's losing a step as he approaches 29 years of age.
Antwaan Randle El is basically a joke as out #2 receiver. One touchdown reception this season, and he lacks the vertical speed to stretch the defense and the height and strength to be a possession guy. He's a decent slot receiver and he's failed in Washington as a kick returner.
We still have Brandon Lloyd under contract and he has been a TOTAL bust in Washington. His lack of effort and quickness to blame teammates for missed catches and poorly run routes have defined him here. He's a waste of a roster spot and he'll be 27 next season... also of note, he's NEVER caught a TD pass for the Redskins.
So the offense is old, and expensive. IMO we need to do a total rebuild. Take two to three years trying to build a winner and leave one offensive system in place for at least 5 years. Continuity is what players need, if they know their specific role and how to carry it out we'll be a stronger team.