Unai Emery insists Arsenal will continue "showing their personality" by asking Petr Cech to play out from the back.
Arsenal claimed only their second Premier League away win of 2018 - and their first under Emery - by edging a five-goal thriller at Cardiff.
Newly-promoted Cardiff scored their first league goals of the season as Arsenal demonstrated defensive vulnerability, and the Bluebirds might have taken an early lead when Cech was put under pressure and kicked the ball straight to Harry Arter.
But Emery defended Cech after the 3-2 win, saying: "He has experience and he is intelligent.
"He is doing what we want, to build up our job on the pitch. If you are playing long balls all the time, you are not showing your personality.
"It is clear you can do one mistake in one action, but we need to continue doing this.
"When you take a little risk it helps to create space and to attack."
Arsenal twice led through Shkodran Mustafi and Pierre-Emerick Aubameyang, but Victor Camarasa and Danny Ward equalised for Cardiff.
However, France striker Alexandre Lacazette, starting for the first time under Emery, came up with a rasping winner nine minutes from time.