Meet The Author: Patrick Barclay on Herbert Chapman
17 January 2014 Last updated at 17:01 GMT
Herbert Chapman has been called the Alex Ferguson of his time - as manager of Arsenal between 1925 and 1934 the club won an FA Cup and two league titles.
Chapman had previously won back-to-back championships while in charge of Huddersfield Town. He also managed Northampton Town and Leeds City.
The BBC's Nick Higham spoke to biographer Patrick Barclay about how Chapman changed the game of football, both on and off the pitch.
Archive courtesy of British Pathe.
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