The Jets have been creating many chances but have unable to take them, and have managed just 10 goals this season.

The club has also had issues with the VAR, with Merrick claiming a Roy O'Donovan goal was incorrectly ruled out for offside against Adelaide United.

"It's just so frustrating," the coach said.

"I don't know if the VAR is working properly or not, it's just one of many situations that the VAR hasn't operated well for any of us, but hopefully we get a bit more luck in the new year.

"We're nowhere near goal-wise where where we were last year at this stage, but regarding the ability to play football, in the front half and set up chances we're way ahead of last year."

Newcastle faces struggling Brisbane on Wednesday, who lost their head coach John Aloisi a week ago.

The Roar have lost their past five games in a row, and have a terrible recent record against the Jets, but Merrick isn't underestimating them.

"I try and get that thought out of their heads," the Scotsman said.

"If the Roar or Mariners or whoever are flat and down and struggling, we have to make sure we give them due respect. There’s no sudden changes to any situation, whether it’s a birthday or someone’s grandma turns 100 … it’s about playing your best football every match.”