I think one of the main things that the nba live series lacks is the other palyers reactions- when a play is going on, especially a shot, all the players should be looking at the ball (or at who they're gaurding)- they shouldn't be looking out to space. also, after a dunk, some players should swing on the rim, or slap the glass- we need more enthusiasm in the game by the players.
sweating, and diving saves (from outta bounds) would add to that.