Arsenal manager Mikel Arteta was furious with his team after a 3-0 loss to Aston Villa.
The Gunners were humbled at home by Villa after being unable to create clear cut chances, despite having a lot of possession in the game.
Arteta knows his team, which has not scored in open play in the league for more than four games, must improve fast.
"Not for big teams [is it acceptable]," Arteta told Arsenal.com.
"Big teams can't afford that. We cannot afford that. You win a football match, two football matches, three.
"We expect to win every game and this is the standard that we have to set. So if someone believes that winning one or two games is good enough, they're completely wrong and I'm not going to accept that.
"I'm not going to accept that mindset at all and it's obviously not what this club deserves. It's my full responsibility and now I have to find a way to do it.
"I think that since I arrived here, it's the first time that I've felt that we performed really under our standards and what we are trying to set at this football club. It's unacceptable."
