I agree, this team is pretty much set. The one "extra guy to put where want" will be a 6th corner back (Smith, Webb, Vaughn, Arrington, Melvin, Jackson and Walker).
I think they keep 9 OL and 4 TEs however. We would lose Boyle if we put him on the PS and we need him in case Pitta goes down.
The issues will arise at kick returner. If the Returner is a receiver, then we will keep 7 receivers and only 5 cornerbacks. If the returner is a cornerbacks then we keep 6 corners and 6 receivers (Smith, Perriman, Brown, Waller, Aiken and Butler). That means Campanaro or Carter make it as a returner or they get cut.
The 6 DL look like Davis, Jernigan, Williams, Urban, Canty, and KLM. That means we cut Guy and Tyson? That would be tough to do as both played well last year when we needed them. Maybe keep Tyson or Guy and let Canty go?
Barring injury, this team is ready to roll.