Manchester United have a glorious history thanks to many of the great players to represent the club, and also in large part to their managers. Manchester United’s managerial history boasts many big names who have helped the club become the worldwide behemoth it is today. But it has not all been plain sailing and glory either. United have endured some difficult times on the pitch and tragedy off it, to come through as the most successful club in English football history. Here is a complete run down of the club’s managers from the time as Newton Heath, to the present day, including trophies won….