That is according to former Arsenal and Nigeria striker Nwankwo Kanu.
Emery replaced long-serving Gunners boss Arsene Wenger at the Emirates in May.
The Spaniard has made it clear he wants his team to play out from the back and adopt a more pressing style than under Wenger.
He has had a mixed start, winning two and losing two of his first four Premier League games in charge.
Kanu is pleased with the appointment of Emery after he spent the last two seasons at French giants Paris Saint-Germain.
And he says the Arsenal squad will not be able to slack off if they want to keep their place in the side.
“The good thing about him is he knows his trade,” Kanu told ESPN.
“He’s been at PSG, won trophies over there.
“He’s bringing the same thing to Arsenal and if you look at what he’s doing, he’s not changing his way of playing.
“He’s strong, he wants his own way, which is good.
“Now we have to get used to his way and the players as well know that he doesn’t mess around with anybody.
“He wants his way, you have to do it, which is good.”
Kanu is the uncle of Arsenal youngster Kelechi Nwakali, who is currently on loan at Porto.
And he says he hopes Nwakali gets a chance in the Gunners first team soon.
“I keep advising him,” Kanu told Goal.
“I hope one day they will open the door for him to come back to play for Arsenal.”