Manchester United supporters enjoyed a golden era under Sir Alex Ferguson, who led the club for almost three full decades. Sir Alex Ferguson had already written his place in history as the greatest manager of all time when he retired from Manchester United in 2013. The struggles Manchester United have endured since his retirement have underlined what a huge impact Fergie made at Old Trafford, with the club now on the fifth permanent boss since. Ferguson was 71 when he retired and his age and desire to spend more time with his wife were among the reasons he called it quits. But not the only rea…
