Philip Clarke, chief executive of Tesco, is to be replaced by Dave Lewis, head of Unilever's personal care division, after a fresh profit warning. Andrea Felsted, senior retail correspondent, Andrew Hill, management editor, and Peggy Hollinger, leader writer, examine the move.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
