I was thinking that the ability to change your personnel so if you have a OG that is really good at pass block but sucks at run block and another OG who is really good at run block but sucks at pass block you can play one on the run plays and another on the pass plays.
I would personally like to see a kick field goal preference or better control over 4th down situations when it comes to game conditions. For example my team shouldn't go for it on fourth down if we are up
Would like to see a down and distance added to offensive and defensive playcalling in the future. Have the distance be user adjusted and give the coach the ability to dictate (by percentage or something) which offensive or defensive formation to use.