West Ham manager Alan Pardew admitted he is under increasing pressure after his side's home defeat by Derby.
"I won't hide from the fact that we've got ourselves into a hole. We've lost three league games in a row," he said.
"The pressure on me and on the team is increasing, and it doesn't make it comfortable. I will look in my team to find who will be up for the challenge.
"It will be a tense atmosphere next week against Sheffield United in the FA Cup. But that is of our own doing."
Grzegorz Rasiak's double strike handed Derby a 2-1 win on Sunday - their first victory at Upton Park since 1976 - and enabled them to move above the Hammers into eighth place on goal difference.
Pardew was angry referee Lee Mason did not send off Derby goalkeeper Lee Camp shortly before half-time for denying Marlon Harewood a goal-scoring chance with a body-check outside the penalty area.
The score was 1-1 at the time, and Camp escaped with a yellow card.
"It was a big decision. I told the referee at half-time that I felt it was a clear goalscoring opportunity," said Pardew.
"He took the easy option by not sending him off - and Camp made a great save in the second half.
"I am not going to pretend we did enough to win the game, but I certainly feel we deserved a share of the points."
Derby manager George Burley is out of contract in the summer and has been linked with the West Ham job.
But Burley reiterated his desire to stay at Pride Park.
"Hopefully it will be sorted out by the end of next week," he said.
"There is a lot of work still to be done, but I have said since August that I want to stay here."