KW:
I live for the kid who works their butts off. I try to teach them patience, because with that they can develop talent in something, maybe not world class, but maybe a decent DIII runner if they study as hard as they training.
Mike:
I agree, I know the faster the runner gets the less his absolute improvement becomes. I call this the Calculus of Running, it is another one of my oddball theories. So I use relative improvements as much as possibly when comparing runners and training.