Manchester United post-Ferguson: from 13 titles in 20 years to none in eight

In the summer of 2013, Sir Alex Ferguson finally relinquished the manager's job at Manchester United having delivered the club its 20th league title. Eight years later, they still await their next one. Join us for End of an Era, as author Steven Bell discusses whether the cracks were already showing when David Moyes took the helm and whether Louis van Gaal and Jose Mourinho could have done more.