Julen Lopetegui allowed one player to leave West Ham United this summer who he should have kept. And he kept someone who he undoubtedly should’ve sold. Julen Lopetegui made some terrific signings for West Ham in the summer, and we definitely have a better squad now than when he took over. The West Ham head coach brought in nine new players, and got rid of much of the deadwood at the London Stadium. And it has been claimed that the Spaniard is still in the market to bring in at least one more signing on a free transfer. Despite all of the brilliant new signings Lopetegui made, he still got one …