 He left the club in June 1949 to take up a similar role at Millwall and remained in this position until January 1954.After a spell out of the game Weaver took on the role of coach at Mansfield Town in September 1955 before being promoted to the role of manager in June 1958 in succession to Charlie Mitten.He was dismissed in January 1960 during a season in which Mansfield were relegated from the Football League Third Division.