An angry John Worsfold didn't hold back after West Coast's loss to Fremantle and Patrick McGinnity says there is no way the players want to disappoint the coach like that again.
The Eagles were thrashed by 65 points, failing to win a single quarter for the second time in the last four games and managing just one goal in the first half.
Fremantle dominated the clearances and contested possessions as West Coast struggled to have any impact.
McGinnity said Worsfold was furious that the team had lost three games in four weeks by more than eight goals and displayed little resistance each time.
"He definitely wasn't happy," the utility player said. "It was similar to Adelaide and Sydney.
"We've got to bring it every single week and we're just letting ourselves down in that department. He had every right to give us a very big spray.
"We can play with intensity, it's just a matter of finding it. We really let ourselves down in that department.
"We're a proud club and there's no way that's going to happen two weeks in a row.
"It's the disappointment of letting ourselves down and letting him down as well. He expects a lot from us and we should bring that every week."
West Coast's form slump since their round-11 bye has been dramatic. They went to the week off sitting on top of the ladder with an 8-2 record but have since won four of eight matches.
Long-term injuries to Josh Kennedy, Mark LeCras, Andrew Embley and Mark Nicoski, combined with a series of suspensions, have placed a high workload on a small group of players who have been selected almost every week.
But McGinnity rejected suggestions the squad was battling fatigue.
"I honestly don't think that's a factor," he said.
"I know it's late in the season, but we've still got a long way to go. We're nice and fit and this isn't the first year we've done it.
"I think everyone's pretty good. We have things in place during the week to get our energy levels up, so there's no issue."