I have to wonder if it's Jerry. I'm not joking. It *might* really start with him.
He may convey to the DCs and the secondary coaches that he doesn't like a high risk type approach.
Think about it. We are currently watching Rex Ryan rush only 3, 4 guys a lot of the time...And rarely is he bringing 5, 6.
Jerry may be pushing for defensive conservatism across the board.
Jerry Jones' accountabilibuddy