Brisbane Roar coach Frank Farina has put his players on notice after the 4-2 loss to Perth Glory on the weekend.

The former Socceroos boss has issued a warning to his Roar charges, saying not one position is safe and that club officials will be looking more closely at the weekend’s match to make decisions.

"After a performance like that, no one is safe," Farina said.

"We'll be looking at the way everyone played."

After being undefeated in five matches, the Roar put up a horror display, letting in easy goals and giving the Glory their first away win of the season.

The loss put the Roar back into fifth position and demoted them to be the second-worst defensive outfit in the A-League, conceding 12 goals in 7 matches.