What's the simplest way to diminish the skills of a superstar talent (short of inflicting an injury)? What would be the surest method of ensuring that LeBron James started clinking jump shots, or that Yo-Yo Ma started fudging chords? The answer: don't let them practice for a month. Causing skill to evaporate doesn’t require chromosomal rejiggering or black-ops psychological maneuvers.
It only requires that you stop a skilled person from systematically firing his or her circuit for a mere 30 days. Their muscles won't have changed; their much vaunted genes and character will remain unaltered; but you will have touched their talent at the weakest spot in its armor.
Daniel Coyle, The Talent Code