Leverkusen underwent a major squad overhaul in the summer, losing four pillars of their recent title-winning side: Florian Wirtz, Granit Xhaka, Lukas Hradecky, and Jonathan Tah. Despite this, the club have invested heavily, signing Malik Tillman, Jarell Quansah, Loic Bade and Lucas Vazquez, among others. Ten Hag's public call for "four to five" more new signings during pre-season was reportedly not well-received internally.