For anyone needing help, I finally got this by quickly going up 14-0 every game then punting every possession. I then called Cover 2 Man every play, put my DT1 into a spy, and used my RE to apply pressure on the QB (but not going for the sack). I also used the epic Personal Shadow strat (with Chime and UNC strats for full disclosure). I also had Ballhawk on two players and House Call on two.
Most games I walked away with two picks but I also managed five in my final game.