Liverpool legend Graeme Souness has claimed that two managers have had a “very different approach” at Manchester United in the post-Sir Alex Ferguson era at Old Trafford. Sir Alex Ferguson, who is one of the best managers of all time, called it time on his legendary managerial career in 2013 after his time with Manchester United. The 82-year-old United legend bowed out of Old Trafford at the end of the 2012-13 season, with Ferguson capturing the Red Devils’ last Premier League title. United have had eight managers following the retirement of Ferguson, including permanent appointments, caretake…