Performance Comes Naturally - Why force it?

We know the mind has something to do with Performance, so we inadvertently try to forecast, then manage our mindset, state, or mood, ahead of time. What if our mental activity is not a problem in and of itself? What if the content of our mind, is understood not to be significant and relevant? What if athletes didn't care or mind what they were thinking moments before or even during a competition? What if your head noise bears no resemblance whatsoever to what is possible in the moment?