I'm usually able to pick up an "obvious" DST off the wire, but nothing is jumping out at me. Here's what I've narrowed it down to (unless it is an elite defense, I usually like to stick to home teams):
Cowboys DST vs CHI
Falcons DST vs CAR
Broncos DST vs OAK
Buccaneers DST vs WASH
Cowboys could get a ton of sacks against the weak Chicago O-line. Falcons have looked GOOD defensively, just a little worried that the Carolina offense goes off (especially with the extra few days off). Broncos should bounce back after giving up 30+ at home against Houston. Bucs have been great defensively, is this where RG3 has his first rough patch?