Remember, passing is to look for the open man. However, DR is fine when you can make your own shot, in which Passing can play a major role in finding the open space necessary. So, 1on1 training is very important in this rgard as well as passing training.
Driving training has to be the easiest and cheapest skill to buy on the transfer list. I would only train this if you have a tough week and have to spread your minutes over the SF/PF positions. If you want passing go 1 position til you get everyone on Sensational+ then go back to the other skills you want.
Id rather have a guard with OD 12 and PA 12 and DR/HD 6 than DR/HD 12 and PA/OD 6... there is about 2mil difference between those skill sets and thats just on a mediocre player.