Pearson said: "First half we let the game pass us by. We had passengers, which is disappointing at this stage of the season.
"The second-half performance was much improved - very competitive. It's annoying. Very disappointing. It means now we have got to find another one or two good results.
"We know that [we have the toughest run-in] but we have to cope with it. I can't waste time thinking about what everyone else will do.
"It comes back to bite you where you don't want to be bitten."
Moyes said: "We are in a good position. Teams still have that chance and we have to do that job. Even scoring the goals has helped - I wanted us to keep our goal difference as good as it could be.
"We have 37 points with a couple of games to go. If we get 40 points we'll have done it off our own back."