3. Stick with Cech
Petr Cech was brought in to fix a position which hasn’t had a brilliant goalkeeper since David Seaman, so imagine when David Ospina is brought into the team in an extremely crucial game against Olympiakos in the UEFA Champions League.
Long story short, Ospina did cost them the game, or at least a goal and that isn’t what Arsenal need right now. Arsene has to play with Cech in most of the games this season; he has the experience to lead a team to the title and also can shore up the back line with his leadership. Cech was brought in to give Arsenal and extra push and keeping him on the bench is probably the worst thing Arsene can do this season.