See Mourinho saying Lukaku would have been £150m on transfer deadline day...
The early movers really did seem to benefit - us with Pickford etc no doubt.
http://www.bbc.co.uk/sport/football/41158426
Goalkeeper Jordan Pickford, 23, left Sunderland for Everton for 34.3m euros (£31.6m) in the summer was called up to the England squad last month.
However, according to the Football Observatory, that fee was 27.5m euros (£23.5m) more than Pickford's estimated worth.
The study also said Manchester United overpaid by 20.1m euros (£18.5m) to sign Nemanja Matic from Chelsea, although former England striker and BBC pundit Ian Wright described it as the "last part of the jigsaw" for United.
Mohamed Salah's 50m euro (£46m) move from Roma to Liverpool was less than the forward's estimated value of 69.4m euros (£63.9m).
Jordan Pickford Sunderland v Everton 6.8 34.3 +27.5
Gylfi Sigurdsson Swansea to Everton 24.1 49.3 +25.2