Interesting you bring this up. I don't know if you're still looking for some all-madden coach mode sliders, but a good place to start is upping all the human sliders (except for special teams ones) to 16 and lowering the cpu ones (again not special teams) to 7. And then tweak from there as you see fit.
In trying to create my own sliders for all madden, i wanted to establish how the slider changes affected how the computer controls the human players and then how the opponent ai reacts to the slider changes as well. Again this was just strictly how the cpu would play minus any human skill input. I did this because the cpu controls 90 % of my players anyway. So i felt it was very important to get good baseline stats just for the cpu game engine first. So obviously i went into coach mode to do this.
Anyway long story short, i didn't go as far as create a set for coach mode, but if i were you, that's where i'd start in trying to create some. Hope that helps some.