backs up what you are saying.

Look at your bench. Your top performers are just physically more gifted than the rest and will outperform them without really listening to you.
The middle have to listen more because while average or just above, that alone is not enough to have success.
the bottom group are not physically there, so they listen to everything you say and try hard to learn it because they know it will be the techniques that get them success.

You hit highschool and most in the top group don't really grow to where they still stand out by physical prowness alone but they really didn't learn the techniques and are behind the curve and get beat by guys in the middle to bottom groups.
because many in the middle group will now be on pair with the top physically, but they know more technique.
But those in the bottom who get enough of the physical growth often become the best because now they can physically do it but they also know what to do in a way that the top group didn't learn.

It's a principle that has outliers, the physical dominant kid who also learns all the technique, etc.

but enough 4-5* athletes struggle to learn the mental part and the effort part of that they never really become the stars.