Hiting - how to keep hands back

Question
Problem:
I have one player who has a near perfect swing, however he has a tendency to shift forward with his hands starting to come forward before the pitch is in the air.  The result: everything is hit the other way without much power.  

Question:
How do I break this habit and teach him to keep his weight & hands back?

Answer
Hi Bob,

My only suggestion, not having a chance to see the hitter, is to increase tee work and soft toss drills--and focus on proving to this hitter that his hands are fast enough to wait a bit longer to release.  

Sorry I can't be more specific.

Pete