Arsene Wenger will be departing the club at the end of the season
I am hearing Aubemayang is disappointed on the attitude of the team
Guillem Balague
"I am hearing Aubemayang is disappointed on the attitude of the team.
"I think deep down he wants to see more from everyone.”
Arsenal's new manager will need to sort out an ageing defence upon arrival.
But Balague admits Wenger's successor will also need to change the entire culture at the club.
“Arsenal don’t only have to solve the defence," he added.
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"If people think that by some coaching and conceding less with a better back four all the problems will be solved, they are wrong in my eyes.
"It is a culture within the club that has to change and is changing.
"Defence stars at the front. Everybody has to work hard. Everybody.
"Players have got quality but need a new face, new messages, and need to come out of their comfort zone."
The Gunners take on Manchester United on Sunday afternoon (4.30pm).