it's a CPU defence. if you sit controller 2 down it goes into CPU mode, it also auto picks a play for you if you don't within about 10 seconds. madden doesn't have delay of game for defence penalites, even the player that is highlted and selected won't be controlled by a human unless you pyrcially touch the controller it will still be in cpu mode. if the CPU intercepts it will run itself unless a human touches and takes control..
so yes this does work if you can wait a extra 10 seconds after each play for the CPU to pick a play