Potentially the greatest club manager to have ever walked the Earth, Sir Alex Ferguson retired in 2013 after 26 years and an astonishing 38 trophies at the helm of Manchester United. What followed was chaos as the sublime turned into the ridiculous and United struggled to replace such a colossal figure.Nearly five years on Jose Mourinho rules the roost at Old Trafford, but the shockwaves of Ferguson's retirement continue to be felt. In number two on our list, we discuss what impact he had and what the future holds for one of the world's biggest clubs. For information regarding your data privacy, visit acast.com/privacy