Ray Parlour has praised Unai Emery for his ruthless treatment of Arsenal midfielders Mesut Ozil and Aaron Ramsey.
Ramsey started Arsenals 2-0 defeat at home to Manchester City but the Welshman was hooked after only 53 minutes and replaced by striker Alexandre Lacazette at the Emirates.
Emery then dropped Ramsey to the bench for the Gunners 3-2 loss to Chelsea, while Ozil was substituted in the 68th minute at Stamford Bridge after a below-par performance.
Ramsey and Ozil started a combined total of 45 Premier League matches under Arsene Wenger last term but Parlour believes Emerys recent decisions prove that nobody is untouchable at his former club this season.
One thing I like about Emery, if you are not doing your job, he will take you off, the ex-Arsenal midfielder said.
You did not see much of that last year, not with Ozil, who more or less played every single 90 minutes even if he was playing poorly.
But against Chelsea Emery had Ramsey on the bench. It is off you come if you are not doing your job, not doing enough for the team. He is not scared to do that, to change things.
Ozil is the big question. Can Emery get the best out of him? In training he will be pushing him, but whether the player wants to adapt to that is another matter.
I dont know Ozil or what his mentality is like, whether he will say he is up for the challenge.
Parlour claimed that he has been impressed by winner Emery since his appointment as Wengers successor.
I watched Emery in training and I was impressed. It was very, very intense. He is right into the players, demanding high standards, every single pass has got to be right, he said.
He was going one-on-one with players, trying to tell them what he wants. But it will take time.
Emery is a winner. He is really driving people, and the players have got to adapt to him.