Do you mean Low Post? If yes, I would say, that you need a Playmaker with high Passing and even higher Handling skills, a guard and a forward with a high jump shot and driving skill and a Power Forward and a Center with a high Inside Shot.
For Example: With Team Schweiz (NT) I have much more Inside Scoring with a SG (high jumper, high driving) on SF, as with a PF or C (high inside shot) on SF.That's the reason, why I prefer a high jumper on SF even when I play Look Inside or Low Post.
I didn't say JS is not important -- I just said playing LI doesn't necessarily make it more important than usual.
Driving helps you get good inside shots, I think this is pretty much self-explanatory.
Allows the player to create his own shot without a good pass from a team-mate. Better driving creates shots more often and creates better shots on average.