Oldham captain Zander Diamond admits his side must regroup quickly ahead of this weekend's home tie with rivals Huddersfield.
The Latics slumped to a heavy 4-1 reverse at Colchester on Saturday and slipped to their third npower League One defeat of the season.
Diamond acknowledged his side gave away goals cheaply and is urging them to bounce back strongly against the Terriers at Boundary Park.
He said: "The frustrating thing is that Colchester didn't have to work for their goals. There were two free headers and a wonder strike, but it is criminal the way we gave away the goals in the manner we did.
"That is something we will have to analyse because we cannot give away goals as soft as that.
"We need to lick our wounds as we have a massive match against Huddersfield and we need to dust ourselves down and to get on with it."