It would be cool to track stats as the game was played (live) without having to stall/pause the game to go look at the statistics window.
When you are playing the game in full screen mode there is an awful lot of grey/blank space along the left and right hand side of the game window. That would be a perfect place to have game stats right there in that unused space. Maybe put the offensive stats on the left and the defensive stats on the right. To make sure the game is not slowed down from all the computing have it only update those fields after each quarter or something. Or maybe updating those fields would not slow down the game at all, I'm sure someone else would know better than me.
Anyhow I have been playing alot lately and thought this would be cool.