In September 1909 Captain Scott announced his intention to utilise dog transport in his dash for the Pole - this being his intention until as late as February 1911. In May 1911, Scott lectured expedition members about a new plan for their Southern Journey. His lecture notes include detailed calculations, based solely on ponies and men hauling the sledges – dogs and motor sledges were now surplus to requirements. In less than three months, Scott had supplanted his published scheme of advance. This article investigates evidence relating to Scott’s change of mind. A substantial amount of research has been undertaken and a credible explanation emerges. The First Depot Journey, with its loss of ponies, inadequate animal nutrition (both dogs and ponies) and crevasse incident wrecked Scott’s original scheme of advance. When he commenced detailed planning in April 1911, it became apparent his dogs could not reach the Pole. Scott’s leadership technique for getting his men to understand and support the new transport plan is examined and its influence on current perceptions of the expedition and its men is investigated.