I would love to see this aspect added to the passing game along with the pump fake. I've harped about Madden not including this in the game but to be honest with you I don't know how it would be implemented without being clunky and cumbersome so I'd rather it be left out all together.
2 things holding this back is the defenders do not react realistically so it doesn't matter what you do from the QB or play calling end because they are going to basically do what they do. i.e. you can run the ball and run quick outs and slants all day in a effort to set the defense up for a play later but as soon as you try to pump fake that out or PA pass the DB is still running stride for stride with you WR because there is no real logic involved when it comes to the cpu playing defense.
The 2nd thing (and this is what I actually thought procedural awareness was when they showed all the blogs and vidz before the release of madden) with the current engine there is no way to look a defender off.
I've seen some fighting games like RE5 and Silent hill where the characters eyes look at the closest enemy but I'm not sure how something like that would work with madden. If your QB actually had the ability to lock his eyes onto a specific WR then logically the safeties and other defenders would start to drift that way then when you pass to the WR on the other side there would be a actual opening there as the defender scrambled to get back into position.
It would be very complex and wouldn't be able to be executed right without a new engine that would mimic actual football movement. I've said before it would be great if DBs actually responded to pump fakes or the A.I. made adjustments like loading the box up to stop the run or at least lean towards it so that you can set up PA passing or double moves...REDO THE MADDEN GAME ENGINE PLEASE!!! Take a year off if you have to let us purchase a roster update and your new big addition whatever it may be for that year for $9.99, start from scratch and do the game right.