 The latter three were said to be leaving to focus on other projects.For Story, the aim of the channel was to provide an intellectual and cultural platform to take-on the political orthodoxy of the time; for other directors, the channel was to be narrowly focused on the politics of Westminster.Tim Montgomerie suddenly left 18 Doughty Street around March 2007 to work on other products and was replaced by Shane Greer, who became a full-time presenter at the station whilst also acting as Executive Director for Young Britons' Foundation.