Good driving and poor IS is an atrocious combination. The driving makes the player think he can score when he's just not capable of it.
About ID, I'd agree with Big Dogs, its not vital, but its these small things that can make a difference to you, because if you have ID on your guards and other teams don't, its an advantage that is really very cheap, at least in salary terms.
I would say since you need these things as you progress up the leagues its a good idea to get used to them as early as you can.