Your team really isn't in bad shape.
Assuming you mean Brian Westnrook, you are solid at the all-important RB position. You are also in great shape with your QB and TE, and Phili is a servicable defense with some upside.
Your only weakness is WR, and enven there you have some decent players... as somebody else pointed out, a lot of #2 and #3 guys.
I would find the guy who drafted a ton of WR's and see if you can make a deal....but don't over pay. Unfortunately, i don't see much trade-bait on your bench, though.
If you can't make a trade, stand pat going into the season and just scour the waiver wire for hot/breakout recievers and you should be just fine.
I wouldn't be affraid to drop Trent Edwards for a free agent WR with upside when trying to find the break-out WR. I think that you will be able to find similar (or better) quality on the waiver wire if Manning gets hurt (or on his bye week). Shockey is borderline droppable, too,