Arsenal manager Arsene Wenger says football coaches should not be bothered by the constant media criticism they face.
Manchester United manager Louis van Gaal came under heavy fire after his side's below-par start to the season.
And the Dutchman was also criticised by former Manchester United midfielder Paul Scholes who said the Dutchman's football was miserable and failing the club's attacking traditions.
But the Frenchman says criticism has become the rule rather than the exception and should be accepted.
"Today it's like that," Wenger said on Friday.
"The rule is everyday you have to criticise somebody or you don't sleep well overnight. Because we are in a public job, we have to accept that.
"You adapt first to your club, to your team, and after that the players who play for you are used to playing in the league.
"It's less a problem of adapting to the league it's more an adaptation to the style of play, to the quality of the players.
"It's important you know well the players you have and I believe as well that Man United are in a construction because they got many new players this year.
"When I arrived here, I had a stable team who was used to playing in the Premier League. I don't look too much at Man United - I look at my club, what we want to achieve and how I could achieve it.
"I leave [comments on Man United] to other people."
