The first rounds of the men's and women's 400m dash at the USA Outdoor Track & Field Championships will be held tomorrow. Two of the top athletes competing tomorrow – Darold Williamson and Sanya Richards – are coached by Clyde Hart, Director of Track and Field at Baylor University. Hart, as you may know, coached the indomitable Michael Johnson and currently coaches 400m king Jeremy Wariner. I unearthed a video that features coach Hart talking about the event, his protégés and his coaching philosophy. Listen to what he has to say about Williamson and Richards.