What a great question: Which high school coach has burned out the most runners?
My votes will go to the coaches who busted their asses to get a million kids onto their teams, and then had the *courage* to train those kids so that they would have a chance to draw the educational lesson that we always say is the essence of school running: Hard work pays off. HS kids (except a few very unusual ones) don't think--don't *want* to think--about their running "careers"; they want to be part of a winner (and maybe get laid, but that's a different thread).
HS coaches are doing a tremendous job if they can get kids (most of whom can't think ahead three weeks to a term paper's due date) to look ahead a whole season--or maybe (gasp) even a whole year, or sometimes all the way to senior year. This is education! And the coaches who get their kids to win are the ones who are actualizing all those ed psych courses that we took in college: supplying clearcut, positive feedback through tangible success.
Do all the kids who've had that educational experience generalize it to other areas of their (later) lives? No way. Do some? YES. Do most of the national-level HS kids go on to be national-level in college? Only a few. Do many of them continue in the sport, even if at a lower level? YES.
Do *any* kids who didn't run at all in HS, or who were babysat--but not really trained--go on to be national-level in college? Essentially NONE, because almost none of them will run competitively in college at all. And not very many will run even recreationally.
If you don't get a kid out for your team; or if a kid shows up, and you don't train him/her to a competitive level; well, then you're guaranteed never to burn that kid out. You also will have failed as an educator.
Thank you, Coaches Newton and Mead and Green and Kranick, for having given thousands of kids a priceless *educational* experience that some, at least, will keep with them the rest of their lives. Thank you for daring to succeed, knowing that to dare greatly is potentially to fail greatly--and daring anyway. Thank you for doing your *job* as high school coaches and EDUCATORS.