Racing PositionsChiefs down 2 top RBs with Williams ruled out7YAdam TeicherChiefs RB McCoy a surprise healthy scratch7YAdam TeicherChiefs' Darrel Williams has waited behind big-name backs before7YAdam TeicherChiefs 'expect to score every single time' and break downward trend for top offenses7YAdam Teicher'Legion of Zoom': Speed of Chiefs' pass-catchers 'unstoppable'7YAdam Teicher