And I of course have NO knowledge of how the game engine is written, however based on the skills this is how I would match them up.
Point Guard - the PG should be best at getting the ball to the team mate who is open, or create an opportunity, thus-
(1) Handling, Passing
(2) Outside Defense, Driving
(3) Jump Shot, Jump Range, Inside Shot
Shooting Guard - the SG should be able to put the ball up from anywhere, anytime
(1) Jump Shot, Jump Range
(2) Handling, Passing, 
(3) Driving, Outside Defense, Inside Shot
Small Forward - should be the most athletic player with most varied skill set
(1) Jump Shot, Jump Range, Outside Defense
(2) Handling, Passing, Driving
(3) Inside Shot, Inside Defense
(4) Rebounding
Power Forward:
(1) Inside Shot, Inside Defense
(2) Rebounds, Blocks
(3) Driving, Passing
(4) Jump Shot, Handling
Center:
(1) Inside Shot, Inside Defense, Rebounds
(2) Blocks
(3) Handling, Passing
Lijkt me wel aardig ;)