Good idea... But how to implement it? If it's done well, it becomes a requirement for every Madden game to follow. Done wrong and it goes the way of QB Vision...
12 buttons (including R3 and L3), 2 sticks and a D-Pad.
1) Given the limitations of the controller, how do you add it in without losing anything that is already a necessity?
2) Will individual lineman adjustments be better than the Slide Protection feature?
If you can come up with a viable plan, I don't see why it can't be part of a future edition of Madden.
Later