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 £100 million on players, Steve Bruce has actually decreased the value of his Newcastle United squad by £108 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:
5. Chris Wilder - Sheffield United
Starting Squad Value: £7,657,018 Current Squad Value: £143,600,000 Players Signed: £120,780,000 Players Sold: £15,925,000 Effective Profit: £31,087,982 (Photo by Catherine Ivill/Getty Images) Photo: Catherine Ivill
6. Roy Hodgson - Crystal Palace
Starting Squad Value: £180,482,623 Current Squad Value: £182,270,000 Players Signed: £45,090,000 Players Sold: £68,155,000 Effective Profit: £24,852,377 (Photo by Michael Regan/Getty Images) Photo: Michael Regan
7. Marcelo Bielsa - Leeds United
Starting Squad Value: £85,755,000 Current Squad Value: £147,290,000 Players Signed: £80,170,000 Players Sold: £33,930,000 Effective Profit: £15,295,000 (Photo by Naomi Baker/Getty Images) Photo: Naomi Baker
8. Brendan Rodgers - Leicester City
Starting Squad Value: £384,210,000 Current Squad Value: £410,040,000 Players Signed: £149,670,000 Players Sold: £125,250,000 Effective Profit: £1,410,000 (Photo by Laurence Griffiths/Getty Images) Photo: Laurence Griffiths