Rupert Murdoch's sons Lachlan and James are to take top roles at 21st Century Fox and News Corp. Lex's Oliver Ralph and Alan Livsey discuss whether they are up to running their father's major media assets.<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
