I saw very little different from the typical playbook but inverted.
What I mean is they played their Under and Bear fronts, which are single gap fronts, for the majority of the game. In fact I only saw one or 2 Parcells 3-4 fronts the entire game, and both times we were gashed for over 6 yards.
If you want to follow what I'm talking about, the best thing to do is watch Chickillo. If he's lined up in the "frog stance" as ya'll call it, over the OT, we are 2 gapping. When he's lined up in a two point stance, we are one gapping.
Here's an example for the "Bear" front I saw a lot. The nice TFL by Fentress came out of this
They also played their under front a bit which is similar except Chickillo moves over one man to play outside shade on the OT, and the Nose lines up in the cnter-guard gap to his side.
This stuff is all in their playbook but it's more of the changeup front for them. It's much less conservative and what we played in 2011 exclusively. Ive said it a million times but if they cut their playbook in half and actually focused on basic techniques the D would improve. But I doubt they have the balls to run this exclusively against better teams. This was a "show me" defense in response to the massive criticism.