Opposing manager Guardiola refused to be drawn on Emery, saying 'he is a fighter [but] I am not the man to offer him advice'.
Cech was subsequently instrumental in keeping the score down against the rampant defending champions and has been long enough in the game to know what is required to keep his first-team place.
"But I have to say that we came to the game with our objectives to grow up as a team, to learn our way, how we want to play and obviously we had the task of doing it against one of the best teams, so it was hard".
"They have to understand that when you start building a new team with a new manager and a completely new way it may take time", said Cech, who was made skipper by Emery in the injury absence of Laurent Koscielny. "We can not be anything different than the challenger because we haven't won anything since I came in".
For Manchester City, who amassed 100 points in the Premier League last season, it was business as usual in north London as they made the flawless start to their title defence. 19-year-old Metteo Guendouzi was provided his first competitive start following his summer move from Ligue 2 side Lorient and the youngster seemed confident, happy to drop deep and regularly provide a passing option to his defenders.
"We spoke about this before the game. they know they can do it".
"I said to him [Welbeck] when he arrived back with us after the holidays that I want the best performances of his career - and to work hard for that", he said. And we count on him.
The Frenchman stayed at the helm of the Gunners for the following 22 years, stepping down at the end of last season.
"There are things we obviously need to improve, the second phase to go through that build-up, but overall I think it was a positive performance".
As in last week's Community Shield win over Chelsea by the same scoreline, the only blot on the Premier League champions' copybook was that the scoreline did not reflect their superiority and utter control.
Emery believes his players tried against City, adding that they needed to improve as a team and also individually. "This process is normal".
"It's utter rubbish to play like that all the time".