Hmm..make schematic changes you say? You mean like ditching the 2gap hybrid and switching to a 1 gap defense when he got Anderson and parry, who were collectively better than Chapman and Hughes?
Yes, last year was a historically bad defense with a hand picked DC. You casually left out how many games davis, Robinson, butler, geathers and adams missed. How exotic can you be with your blitzes when your secondary is primarily made up of Chris Milton, rashaan melvin, Darryl morris and a very green tj green etc? DBs were dropping like flies last year, Jackson and Morrison had to play far too much, cold and Mathis were barely shells of their former selves. Our best playmaker on defense was a toss up between Adams and Erik walden!
Oh and how many different starting OL combinations were there?