Wenger on defensive after draw
Arsenal manager Arsene Wenger hit back at his critics following the goalless draw with Aston Villa at Villa Park.
The Frenchman's decision to replace Olivier Giroud with Francis Coquelin with two minutes remaining led to a chorus of 'you don't know what you're doing' from the visiting fans.
When asked about the chants at the post-match press conference, Wenger said: "I don't want to comment on that. I do my job and do my best for the club.
"I leave it to you to judge. I try to be as good as I can be. Is it hurtful? Look, I have managed for 30 years at the top level and I have to convince you I can manage the team?
"How many games have you managed? I promise you if you manage one I will sit in the stands and chant 'you know what you are doing!'"
When questioned about the substitution, Wenger said: "You can discuss every substitution. You think what you want.
"I do my job and I let people judge it. I do that every day and I do my best every day. I know why I do it.
"What is the thinking behind the substitution? I will not explain every decision I make, you judge the game and I sit here and explain to you our game.
"You are all great managers! I read the newspapers every day and I can tell you that you are always great managers!"
On the Gunners' performance, Wenger added: "We were a little bit frustrated. We expected a difficult game because we played an intense game last Saturday against Tottenham.
"We had a Champions League game on Wednesday night so we knew it would be hard.
"Always, when you play away from home after the Champions League it can be difficult. We lacked a bit of sharpness today in the final third. Physically we were jaded."