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:
9. Slaven Bilic - West Brom
Starting Squad Value: £81,833,000 Current Squad Value: £78,530,000 Players Signed: £29,980,000 Players Sold: £31,380,000 Effective Profit: -£1,903,000 (Photo by Catherine Ivill/Getty Images) Photo: Catherine Ivill
10. Frank Lampard - Chelsea
Starting Squad Value: £760,545,000 Current Squad Value: £749,320,000 Players Signed: £222,480,000 Players Sold: £191,310,000 Effective Profit: -£42,395,000 (Photo by Lee Smith - Pool/Getty Images) Photo: Pool
11. Ralph Hasenhuttl - Southampton
Starting Squad Value: £219,690,000 Current Squad Value: £195,570,000 Players Signed: £69,030,000 Players Sold: £48,240,000 Effective Profit: -£44,910,000 (Photo by Andrew Boyers / POOL / AFP) Photo: ANDREW BOYERS
12. Carlo Ancelotti - Everton
Starting Squad Value: £428,130,000 Current Squad Value: £424,670,000 Players Signed: £67,400,000 Players Sold: £3,980,000 Effective Profit: -£66,880,000 (Photo by John Sibley - Pool/Getty Images) Photo: Pool