Here, bookmakers Paddy Power crunched the numbers to take a look at each League One club and their net spend over the last decade – and there are some pretty shocking results.
However, not every third tier club has net spend in the minus column - scroll down and click through the pages to view the full club-by-club break down:
. BOLTON, ENGLAND - OCTOBER 29: A general view of the EFL official match ball prior to the Leasing.com Trophy match between Bolton Wanderers and Manchester City U21s at the University of Bolton Stadium on October 29, 2019 in Bolton, England. (Photo by Lewis Storey/Getty Images)
A general view of the EFL official match ball prior to the Leasing.com Trophy (Photo by Lewis Storey/Getty Images) Photo: Lewis Storey
. Wigan Athletic
Net spend over last 10 seasons: +£30,640,000 Photo: Gareth Copley
. Ipswich Town
Net spend over last 10 seasons: +£22,170,000 Photo: Stephen Pond
. Peterborough United
Net spend over last 10 seasons: +£21,550,000 Photo: Alex Burstow
. Charlton Athletic
Net spend over last 10 seasons: +£17,710,000 Photo: Julian Finney
. Blackpool
Net spend over last 10 seasons: +£14,770,000 Photo: Clive Brunskill
. Oxford United
Net spend over last 10 seasons: +£13,170,000 Photo: Catherine Ivill
. Crewe Alexandra
Net spend over last 10 seasons: +£10,010,000 Photo: Gareth Copley
. MK Dons
Net spend over last 10 seasons: +£9,490,000 Photo: Catherine Ivill
. Swindon Town
Net spend over last 10 seasons: +£6,290,000 Photo: Michael Steele
. Doncaster Rovers
Net spend over last 10 seasons: +£4,250,000 Photo: Daniel L Smith
1. Wigan Athletic
Net spend over last 10 seasons: +£30,640,000 Photo: Gareth Copley
2. Ipswich Town
Net spend over last 10 seasons: +£22,170,000 Photo: Stephen Pond
3. Peterborough United
Net spend over last 10 seasons: +£21,550,000 Photo: Alex Burstow
4. Charlton Athletic
Net spend over last 10 seasons: +£17,710,000 Photo: Julian Finney
