Thats what the player attribute slider is for, its half way in the demo if that, while I have managed to lose the puck on one too many dekes with an unskilled player it doesn't happen enough at half way. That in combination with lowering both CPU passing and CPU speed should make a huge difference in what the AI decides to do with the puck and how effective on the whole its passing is.
When it comes to 50/50 pucks, you really need to get into a good position and box out the other guy this year as with alot less "suction" its much harder to gain control of a rolling puck. Which to me is great personally.