They say you have to speculate to accumulate, but things don't always work out that smoothly.
According to the European Football Index, for example, despite spending over £88 million on players, Graham Potter has actually decreased the value of his Brighton squad by £94 million during his time in charge.
Click and scroll through to see the full set of figures, and how he compares to his Premier League rivals:
Click and scroll through to see the full set of figures, and how he compares to his Premier League rivals:
17. David Moyes - West Ham
Starting Squad Value: £336,375,000 Current Squad Value: £255,920,000 Players Signed: £51,390,000 Players Sold: £20,520,000 Effective Profit: -£111,325,000 (Photo by Julian Finney/Getty Images) Photo: Julian Finney
18. Mikel Arteta - Arsenal
Starting Squad Value: £633,366,040 Current Squad Value: £562,460,000 Players Signed: £84,600,000 Players Sold: £16,790,000 Effective Profit: -£138,716,040 (Photo by Molly Darlington - Pool/Getty Images) Photo: Pool
19. Pep Guardiola - Manchester City
Starting Squad Value: £593,279,370 Current Squad Value: £944,460,000 Players Signed: £832,420,000 Players Sold: £283,470,000 Effective Profit: -£197,769,370 (Photo by Milos Bicanski/Getty Images) Photo: Milos Bicanski
20. Jose Mourinho - Tottenham Hotspur
Starting Squad Value: £807,750,000 Current Squad Value: £680,450,000 Players Signed: £130,500,000 Players Sold: £28,970,000 Effective Profit: -£228,970,000 (Photo Neil Hall - by Pool/Getty Images) Photo: Pool