Manager Lee Johnson was disappointed with a lot of his players following the 3-1 home defeat to Leyton Orient.
Jonathan Forte had given Latics an early lead but they were immediately pegged back by Darius Henderson's low finish.Two second half goals from David Mooney and Kevin Lisbie sealed the victory for the visitors and the manager had strong words for his players.
He said: "We looked dangerous in the first half but we came out after half time and were dopey, there were individual errors and the first ten minutes of the second half killed us."
Although he was disappointed with the second half display, Johnson took positives from the first half but admitted his frustration with his side.
"I thought we were very good in the first half. We looked solid defensively, compact and we put pressure on the ball.
"It's so frustrating because there were some good parts in the first half but for some reason, we haven't been mentally strong enough to prove it over 90 minutes," the gaffer continued.
"Forte terrorised their defenders in the first half and that should have pegged them back and gained us the midfield territory. I can understand why people have gone home frustrated because I'm also frustrated."
Port Vale are the visitors to SportsDirect.com Park on Tuesday night and the manager is hoping for a response from his players.
"It will be a tough game because our boys have got to go home, look at themselves in the mirror and get themselves rallied. We've got to make sure to go into the game, keep a clean sheet and come out on top," said Johnson.
Watch the full interview here.