Julen Lopetegui has numerous different jobs to do at West Ham United this summer, and all of them are very important. However, the most pressing task that faces Julen Lopetegui is bringing a top-class striker to West Ham before the start of the new season, as far as I’m concerned anyway. It has been claimed that the Hammers boss is prioritising the addition of a proven centre-forward, alongside a high quality new centre-back this summer. The likes of Youssef En-Nesyri are said to be firmly on Lopetegui’s radar, but the Spaniard is casting his net far and wide. Michail Antonio has been a fantas…