I don't really think receiver is a top need, but I could be wrong. Bowe and Breaston are legit starters in this league and guys like Baldwin, Wylie and McCluster are still developing. With an upgrade from Cassel and Quinn to Geno, it's possible that we have enough talent there to make some noise.
We need a starting inside backer and corner, though and at least one defensive line spot should be open...as we jettison two top five picks from the DL rotation.
I'd make an easy argument that safety needs upgraded more than receiver, too.
Those are my top 5, anyway.