Could you expand on this?
In particular: are the coverage rules for match coverages exposed? Is it possible to change the rules of the existing match coverages and/or add more pattern-match coverages into the game?
I have a couple books about match coverages and since learning about them have become very vocal about their necessity in future versions of Madden.
Would also be interested to know also if things like exotic defensive fronts and creeper pressures could be added into the game. I am going to assume there's no ability to add read blitzes because I don't think there's ever a time in Madden where a defensive player reacts to an offensive lineman to determine his assignment.
Generally speaking - I wish I had a gaming PC because I would happily jump in and contribute. If there's anything I can do from a MacBook without the ability to run the game, point me in the right direction and I'll see what I can do.