Package Luck with a RB to see if you can snag a top RB like AP, Foster, Lynch, Rice, McCoy, or T-Rich. Or, package Luck with a WR to get an upgrade for Wes Welker. You could try to buy low on Harvin or Nicks. You don't need a backup TE. If Gonzo went down, chances are Pitta would still be there. I'd vacate that spot and leave it open to handcuff a potential RB upgrade or to snag a potential keeper who has upside next year(Hillman?) You have a pretty nice team, good luck the rest of the way.