You can put the controller on the CPU team before the game and set the offense/defense to whatever you want it to be and the second the game starts you can switch it back. You'll be the CPU for the kickoff, but after that its all gravy. This is what I do when I play a team like Oregon who in real life runs a 3-3-5 but in the game is set to run a 4-3 - you can obviously do this with offenses that seem to have a lot of QB runs in their playbook but a really slow QB.