#3 Tiemoue Bakayoko is yet to settle well in English football
When Bakayoko signed for Chelsea from Monaco this past summer, it seemed that Chelsea were just going from strength to strength.
However, the talented Frenchman has failed to adapt quickly to life in English football and was hauled off at the interval by Conte. The defensive-minded midfielder seems the total opposite to N'Golo Kanté - sloppy in possession, lazy when marking and generally lacked confidence in attempts to actually take the game to the Hammers.
This could be because he does not suit Conte's current system with three central midfielders. He thrived under Leonardo Jardim because he had extra protection from Fabinho who was constantly sitting behind him in a deep midfield role, meaning he had the freedom to roam across the pitch.
However, at Chelsea, he either has one or two midfielders beside him, meaning his space in which to move is limited to one area of midfield.
It will ultimately take him more time to settle before he can live up to the £40m price-tag, which might not happen if he continues to only play in this system deployed by Conte.