In response to pumpsiefan's comment:
As much as I like Phillip Thomas I am not sure about adding another rookie to the safety mix. If Chung leaves as expected I'd like to see the Pats add a wily vet. One UFA guy who intrigues me is Quintan Jammef of the Chargers. He as played CB his whole career but at this stage a move to safety might be in order. I also wonder about another ex-Longhorn - the Bill's Aaron Williams who was drafted high but hasn't found his game in Buffalo. He is another guy, fairly big, who might be better suited at safety than CB.
I had forgotten about Jeff Demps, Mb. Could he be the Pats sleeper of 2013?
Demps is def an intriguing cat... could def impact in the return game, at the very least.