Much was said about Arsenal's lack of activity back in January, how it cost them a top-four finish last season, and a lot of criticism understandably headed in the club's direction.
Pierre-Emerick Aubameyang departed along with a few squad options, and several first-team players left for the African Cup of Nations. Not bringing anyone in was a huge risk for a team that had its eyes on Champions League qualification.
Despite strong links to Dusan Vlahovic and Bruno Guimaraes, the reluctance to strengthen saw both players move elsewhere, with Guimaraes joining fellow Premier League side Newcastle United. A few months later, he scored against Arsenal during a defeat that all but crushed their hopes of a top-four finish.
