RyanFitzMagic,
I fear your lack of results may be a result of your expectations. These aren't magic pills that you use and all is well. They have to be fine tuned to the way you play the game. It takes some WORK.
You have to become more 'active.' Right now, you seem to want to trust the CPU will play well and expect it to play better. That expectation leaves room for only two things to happen: The CPU will improve its play by itself OR EA will improve CPU play. We both know the CPU isn't going to get smarter on it's own and you'll have to wait for Madden 13 for EA to give us better CPU play. Neither helps you RIGHT NOW.
You have to be the difference. What you do with your fingers makes all the difference.
Case in point: When I'm playing opponents, I'm not just looking at their football acumen. I'm watching their Madden acumen as well. If their user skills are deficient in any way, it doesn't matter if they have all the football knowledge in the world. If they are easily baited out of position, switch too much/too little, what they react to, how often they change looks, etc...
If he doesn't switch with the ball in the air, I have a collection of routes I use to beat those guys. If they attack the run downhill well, but aren't good in pass coverage, there's plays for them too.
You seem to be the type that plays decent in coverage with the guy you control, but you don't switch to defend the pass. For you, I'd use a series of Ins/Outs, Hooks/Streaks, Corners/Posts to stress your coverage at the seams and sidelines... YES, I'd test your coverage skills early and if they were decent, I'd simply stress the edges while you covered the middle until you switched and defended some of the passes successfully yourself. I would put you in as many situations as possible where you would need to switch to defend a play.
So, you have to be the difference...
I could give you all manner of things to try, but unless you embrace and utilize the control the devs allow, you'll always be a step behind. Keep working at these techniques... In particular the ones BigFNDeal mentions about snapping the ball when they shift away from play side.
Later