West Ham United have been struggling to find a first-choice centre-back for quite some time. Indeed, over the past few years, the Hammers have gone all around the houses in search for a defensive star. The east London club have gone after the likes of Harry Maguire, while they’ve struggled using the likes of Thilo Kehrer, Nayef Aguerd and Issa Diop under David Moyes. However, now, with Julen Lopetegui at the helm, the Hammers will have a new defensive approach, and they have their eyes on a new defensive target for their new manager. West Ham want Odilon KossounouAccording to The Athletic, Wes…