Cech, 36, was criticised for the part he played in that season-opening loss as he struggled to handle Emery's philosophy of playing it out from the back.
But arguably the most exciting addition came in the form of a new goalkeeper, as German global Bernd Leno joined from Bayer Leverkusen.
The Spaniard brought Bernd Leno in from Bayer Leverkusen this summer, but the German warmed the bench during Arsenal's Premier League opener against City as Cech manned the posts. If you look at the result you can think of an easy game.
Petr Cech critical of Bayer Leverkusen's 'banter' on Twitter
Emery more or less tried this formation in the opening game at home to Manchester City, but came up against a superior team. He has experience, he has quality, he has the capacity'. "If he starts bad, I believe in him also".
Emery has also confirmed that Petr Cech will keep his place between the sticks this weekend so Bernd Leno will have to wait a little longer to make his competitive debut for the north Londoners. 'Petr Cech can continue to start the match.
Speaking to Ominsport, Wright said: "Unai Emery needs at least, if we're talking transfer window terms, he needs at least three or four transfer windows".
"Against Manchester City, the team kept their ideas, kept their spirit in the game for the full 90 minutes, even when we were losing, and didn't let (their heads) go down". Ainsley Maitland-Niles filled in but suffered a small fracture to his leg early on and now faces up to two months out.
Experienced Swiss global Lichtsteiner is a right-back by trade and Emery is hopeful Monreal will be fit to face Chelsea after returning to training this week.
Additionally, he won four Premier League titles during his stay at Stamford Bridge. He said: "Nacho has started training with the group, so maybe he can come in for the next match".