We know growing expertise takes time. And the math tells us that experts have mastered addition, performers have mastered subtraction (more here http://tiny.cc/uk7ksz).
You can’t apply everything you know to a performance; in sport, art, work or life. It appears cluttered and you see this even in the expert who is not yet polished in performance.
The power of reduction creates high-performance, lifts the meaning and frees the performer.
Knowing what to reduce is the art of the great performer. And the great coach.