West Coast coach Andrew McQualter was disappointed with his side's performance against the Western Bulldogs on Sunday.
The difference between their 94-point loss compared to their nine-point defeat to ladder leaders Adelaide the previous week highlighted the gap between their best and their worst.
"It's the biggest challenge we've got at the moment. We've spoken about it a few times this year," McQualter said.
"It was an interesting game today. We just couldn't quite stop any of their scoring. And we clearly couldn't score. Pretty big parts of footy. It was disappointing.
"You sort of look at the game and our pressure rating, which we chased today. It was actually a decent number today, quite high, but they were just so good at getting out and then once they got out of that first phase of defence, they just punished us."
The Eagles have only registered one win in 2025, a 28-point win in round 10 against St Kilda.
They have now lost 12 in a row and face Sydney next week in the final round of the year.
"We've got one more game for this season, but it's not the end. We just want to keep improving and learning the way we want to play," McQualter said.
"I just spoke to the players about it then, the players are really keen to play our last game in the right way and keep building on what we've tried to do this year.
"Hopefully that gets us a win. That's what we're chasing."