After Harold's bullet header had put Perth in front midway through the first half, the Phoenix had some good opportunities to square the ledger, none better than a chance for Michael McGlinchey just before the break. With the goal at his mercy, the All Whites midfielder inexplicably placed his shot from seven yards straight at Ante Covic, who was able to scramble it away.
"Look at the chances we missed. There were a couple of clear-cut chances and there's no excuse for that," said Merrick.
"We're doing a lot of things right but our midfield and defence must be very frustrated that (our attack) is not scoring, because when you score, you lift."
"We can't do any more at training than what we're already doing. It really comes down to having quality players in the pointy end of the team. Joel Stevens is getting better and Blake (Powell) is working hard, but it's not just those two," he said.
To make matters worse, midfielder Alex Rodriguez was withdrawn after an hour with a suspected medial ligament injury, while fullback Tom Doyle complained of calf soreness after the game.