1. i fully agree with Beast
2. Driving don't seen to be that important, and would be my first stat i leave out on a guard if i had to decide. The italian NT played a long time without driving on their guards, and was pretty succesful with it but i have no idea how there rooster looks like today.
3. maybe you should replace it with oppurtunities, so the driving depending looks on the basket and when they are considered to eb good enough the player will take it - so you maybe avoid a turnover after this oppurtunity and make the game a bit faster(or at least raise the overall quality of shots you take, which is also a bit dynamic if i understand the BB right).