I'm sure there's plenty of guys in our league with more experience than me but here's what I think I know.
Driving affects the player's ability to make the right decisions when scoring/driving the key which of course has importance when you play certain offenses and in the positions they play (Eg. LI / SG etc). A guard with great Driving will, with offenses like LI for example, helps them to know whether to score or to dish off. Others will have more to offer on this I'm sure.
"...a good scorer have[ing] good JS..."
If we're talking about a PF, absolutely. A centre with great JS is very handy but not crucial unless in top leagues. If you are just asking whether any player, regardless of position, will be a better shooter if they have great JS and IS...I would say...yes. However, the position does inform this.
"What does a player's experience do?"
As far as I am aware, a player's Experience slowly increases with age and receives "mini-boosts", if you like, from playing in Allstar, Finals and NT games. As for how it affects a player I would suggest it acts as a sub level in Finals games. Again, I'm sure others will have more to offer on this.
Don't know if any of this helps, ZinGa...
PS You put up a good fight tonight and early on your boys looked good. I haven't checked your Box Score to see what eventuated.