Brisbane Roar coach Mike Mulvey hinted there may have been some complacency involved as Brisbane Roar were stunned at home by Newcastle on Friday night.
The Roar coach said his side, usually renowned for their precise build-up play, were not quick enough in their passing, as they struggled to break down a dogged Jets defence.
The loss ended a run of six straight home wins for Brisbane, but continued their poor record against the Jets at Suncorp.
Newcastle have now registered eight wins at the Roar's home ground, which is the best record of any visiting side.
A James Donachie own goal in the 34th minute enabled the Jets to maintain a defensive structure and hit Brisbane on the counter attack; a tactic which paid dividends and resulted in a second goal late on from Joseph Gibbs.
Despite completing 607 passes to Newcastle's 297, Brisbane could not find a way to goal.
"What this is, is a wake-up call to us," Mulvey said after the match.
"This is our home ground, we want it to be a fortress, it was up until now, and it's the first game for a while that we haven't scored in.
"So we'll take our medicine.
"We're big enough and ugly enough to be able to deal with that.
"I take full responsibility for the result and we'll fix it on the training paddock."
The Brisbane coach lamented his team's inability to convert a handful of decent chances, and their unusually laboured attacking play.
"We had our chances, we did have our chances," Mulvey said.
"We just weren't incisive enough in the final third, occasionally we were taking too many touches, we didn't have the support in the right areas.
"So, look, it was a frustrating night for us because they got numbers behind the ball and we didn't move the ball quickly enough.
"We got into some good areas and we probably made about seven, eight, nine, maybe even 10 cutbacks tonight; every one went to a green shirt, except the one in the first half that fell to Liam (Miller).
"They've obviously studied us and looked at the way we do things, so we need to be a bit smarter."
Jets coach Gary van Egmond, meanwhile, was full of praise for his side's defensive efforts.
The Jets enjoyed just 34 per cent of the possession, but maintained a solid defensive line to successfully repel every Brisbane attack.
A tactical adjustment from van Egmond 20 minutes into the first half enabled the Jets to curtail Brisbane's early momentum and wrestle control of the game from the hosts.
The surface of the pitch, which was somewhat damaged following recent Taylor Swift and Bon Jovi concerts at Suncorp Stadium, also played into Newcastle's hands, admitted van Egmond.
"We talked about trying to control the game without the ball," he said.
"We started off with a 4-4-2, tried to play a diamond initially, and they just kept on getting out to the opposite side, and I just thought it was a matter of time until we were going to get ourselves in trouble there.
"So we switched back to a 4-3-3 and it made it a little bit easier for us to be a bit more compact and have numbers in the middle, with each wide player tucking into the two central midfielders.
"It wasn't an easy game to try and play through the middle, with so many bodies in there and, of course, the way that the pitch was probably helped us as well, so we sort of tried to play to conditions as much as possible.
"But it was a fantastic effort by the players defensively and opportunist in regards to scoring a couple as well."