Arsenal added six first-team players to the squad last summer but it was the seventh acquisition from a non-playing perspective that had one of the biggest impacts on the campaign. Mikel Arteta raided his former side Manchester City for set-piece coach Nicolas Jover.
The Frenchman joined Arsenal and their ability to both attack and defend set pieces skyrocketed. Gabriel Magalhaes in particular benefited from scoring five goals, more than any other defender in the league last season.
Speaking on the Peter Crouch Podcast, Aaron Ramsdale described the impact of Jover and spoke of how demanding the Frenchman is and the expectations set by him.