Little things that make a big difference.

They are a small unseen component that don't cost very much to buy. BUT, If they break during a race it is game over, especially now there is no 100m rule..
There are a mass of small not particularly visible components to training that need to be undertaken now and undertaken well. A particularly unexciting component is establishing an understanding and proper execution of movement. It doesn't cost much in terms of energy expended in training and it certainly isn't something that immediately shouts out 'race winner' like a shiny Empacher might but not covering the basics of good movement will end up in training missed which results in going slower or worse still, not racing.
Getting this message across successfully now is a very important part of my job right now, I am being helped by the Strength and Conditioning staff who seem to be really enjoying working with the group to date.