Them ex-cowboys were playing so;lid to day for the Bengals on defense. Even Bray james made a play. See how much a pass rush helps out the lb and secondary play.
I think a lot of it also has to do with the schemes those teams run. It seems like every D-coordinator we've had in Dallas for the past decade or so is just content with playing super soft coverage and allowing the other team to do whatever it wants on passing downs.
DBs play as if they're directly instructed to give 10-15 yard cushions to WRs, even on 3rd and 5 situations and LBs play like they're told to "keep the ball in front of you," so they let all those dink and dump passes to RBs in the flat to occur.
There's no aggressiveness on the back-end of this defense, and a lot of that has to do with coaching. I can't remember the last time I saw one of our DBs play tight coverage on a WR consistently. Honestly, it was probably Mike Jenkins during his one good Pro Bowl year in 2009