The schedule favors the Gunners, and to be honest, Ozil is more integral to the team than Alexis is right now. You saw how the side plays with no Ozil against West Brom, then he showed out against the Rentboys.
Personally, I'd rather see Alexis go and bring in a holding midfielder like William Cavalrho, because Xhaka is a trash liability. I'd rather start Ramsey.
A weak mentally team that's come from behind to win or draw more games than any other of the top 6 clubs. Weak defensively and in the transition sure (Chambers is awful)...but mentally weak this side is not....do you even watch football. Did you even watch the Liverpool match? A mentally weak team doesn't make that match as interesting as it was, same for the Chelsea match.