I think one of the things about being a good coach is to recognise when you have given all that you can. In fact there should be some sort of unspoken law that says that a coach cannot have anyone for three or four years - if you have not passed on most of the stuff you know in that time, then you are not doing a good job.
Kids are starting at such a low base rate in terms of fitness that it's taking them years to catch up to where people like me started from. Every little bit is making it more difficult for kids to succeed on a world stage.
