I think the obvious answer is the play of both Raji and Pennell. The the down linemen are playing as I have not seen since we went to the 3-4.
Pennel hasn't supplied pass rush though. But I do think this fits into the run D has improved so the pass rush has had more of an impact. The interior run D hasn't been this good since 09 and 10.
Bud Adams told me the franchise he admired the most was the Kansas City Chiefs. Then he asked for more hookers and blow.