Why dont the three fastest men in history (Bolt, Powell and Gay) who have three different coaches feel the need to race indoors over shorter distances? Granted they compete in the odd low key meeting in February and March but over distances greater than 100m. Is this due to not wanting to disrupt training by traveling to and around Europe thus replacing possible meets with time trials and over distance races like the 400m in their normal environment? Or does this reveal more about the direction of the high intensity elements in their training (long-to-short)?