His 14-year spell as secretary-manager of Burnley was highly successful and guided the team to an FA Cup victory and a Football League championship.

He opted to change the colours to claret and blue, to match the strip of reigning Football League champions Aston Villa.

[2] Towards the close of the 1910–11 season, Haworth pulled off his first major signing when he persuaded England centre forward Bert Freeman to join the club from Everton.

Haworth's team secured a 1–0 victory over Liverpool, making him the only manager to date to have won the FA Cup with Burnley.

[2] The team ended the 1914–15 season in fourth place in the First Division before football in England was interrupted for four years by the First World War.

The 1920–21 season started disappointingly for the side, but he eventually led the team to a 30-match unbeaten run to become Champions of England for the first time in 1921.