I'd like to comment on Williams. Coming off of 2010, Williams was praised for his strength in press coverage. This off season, I believe it was Whitt (or maybe Capers?) who said Shields is better suited to press and Williams better suited to off coverage.
I found this particularly strange, given Williams style of play that earned him the big contract and the fact he was beaten so regularly underneath in off coverage last season. I suspect he has not regained full strength from the nerve damage associated with the shoulder injury. That makes him a different player, and not a better one.
I think he's being counted on this year, but next season may be very different matter.