including the other elite point guards. It's simple physics...if two guys share the same quickness level but one get's a slight head start, the guy with the head start has the advantage. When you have the ball, you know where you are going.

Some guys do have a better knack for anticipating where a player is going and getting to that spot...but that's still guess work. If you guess wrong, you're now chasing.

Now if you can be effective at being a little physical and bumping a guy off his line, you provide that little bit of reaction time for the help to come and perhaps he doesn't end up with as clean a look. But no one really stays with the elite quickness of a true NBA star. They just hope to disrupt it a little.

Jimmer is often pointed at as not being able to stay with the elite guards. It's true. But his primary issue isn't athleticism, it's sheer tenacity and instincts that might have developed over a long period of time if defense had ever been emphasized with him. It might not take the skill development that a well rounded offensive game requires, but it is a skill. Jimmer never had to have it...and it's tough to teach an old dog new tricks.