West Ham United head coach Julen Lopetegui is a man under real pressure right now. Julen Lopetegui arrived at the London Stadium in the summer after David Moyes was moved on, but he’s yet to make any discernible improvements at West Ham. There is apparently friction between Lopetegui and Tim Steidten right now, regarding the Luis Guilherme signing. However, the Spaniard agreed to work under a director of football, so he made his bed, now he has to lie in it. Lopetegui’s chief focus has to be on getting the best out of his players. He needs to implement a playing style that suits the players he…