It is sir Alex ferguson.
Sir Alex Ferguson - Manager, Manchester United
Sir Alex Ferguson. He has won 46 trophies as manager which makes him the most successful British football manager in history.
The person who just retired as the manager of the Manchester United Football Club is Sir Alex Ferguson. He is the most successful manager in the history of the club.
Alex Ferguson - The most successful manager ever
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The most successful profession team is the Brazalian team.
Although Alex Ferguson (Manchester Utd) or "fergie" as he's known by Premiership match officials is the most successful manager in terms of trophies won,the greatest manager in Premier League history is widely considered to be Arsene Wenger (Arsenal).
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Brazil
Alex Ferguson