who is the longest serving manager in the premier league
List of current Premier League and English Football League managers Jim Bentley is the longest-serving current manager, having managed Morecambe since 2011.
Alex Ferguson Sir Alexander Chapman Ferguson CBE (born 31 December 1941) is a Scottish former football manager and player who managed Manchester United from 1986 to 2013. He is regarded by many players, managers, and analysts to be one of the greatest and most successful managers of all time.[5][6][7][8]