PERTH coach Dave Mitchell said Newcastle's commitment was the main reason the Jets scored a 2-0 win against Glory at EnergyAustralia Stadium on Friday evening.
The Jets went into the match with their backs against the wall with off-field dramas compounded by a lean start to the season.
But the Newcastle club played as if their life depended on it and their intensity was too much for the Glory to cope with as a Michael Bridges volley and Labinat Haliti strike gave the Jets their first win of the campaign.
"The first half we changes our shape a little bit and Newcastle looked a bit hungrier and I think the formation caused us some problems," Mitchell said.
"But I think the desire and commitment from Newcastle was better than ours.
"We changed things around a little bit in the second half and I think we've dominated the second half without creating many clear cut chances."
Mitchell said there was always a danger of catching Newcastle in a 'desperate' mood after the crisis the club has endured over the last month.
However, the Glory coach also said it was Perth's starting formation that also contributed to the loss.
"It was always a bit of a concern with what has happened at the club (Newcastle)," he said.
"They are a pro club and it is disappointing for them so it was a concern (they would come out firing) and it happened.
"But I think the way we lined up contributed a little bit. But like I said the second half it was much better because we forced them back without creating too many chances - but I thought we were the better side in the second half.
"I think the Jets have been unlucky in a few of their games.
"They should have won against the Melbourne Heart here and a few of their away games, particularly in Adelaide they dominated quite a lot of the game and didn't get the win so they are a dangerous side.
"So I think it was a combination of the way we lined up tonight and the desire and commitment from Newcastle."