For what it is worth-- One thing to watch for is exactly how Rondo misses his shots. If he is missing left and right, it is more likely to be technique. If your hand isn't behind the ball or your elbow flares or you don't have a good follow through, the ball deviates from the direction you are aiming. Simply stated it is all physics. If the force is directly behind the ball and the follow through points at the target, the ball will go straight. On the other hand, if it is short or long, it is a combination of talent and repetition problem. This can sometimes be aided by visualization techniques. (too many people look at the "basket" which is far too big of target. If you look at the small net hanger in the front of the basket you will be more accurate as you visualize the ball going over it. When I start "screwing up" my shot and start hitting the back of the rim, it is normally because I have lost my small target. When I focus on the small target, things immediately get better. A small target always brings focus. I remember Bird getting really mad at himself on a MADE free throw because the ball didn't go EXACTLY where it wanted it to.