West Ham boss Slaven Bilic has told his players its panic stations.
Bilic wrote for the London Evening Standard: "I'm not suggesting that everyone will lose their place in the team but I am no longer saying: 'I'm not worried, it will come'. I am worried.
"What I am saying is: 'It's time to mobilise yourselves. Do it — and do it now. Don't be too casual, too calm'.
"In training they are not like this, they care — but you have to do it in a game.
"At the moment the confidence is low. That is to be expected. When we concede, we sink down. Against Southampton, they scored in the 41st minute and then created more chances in the four minutes before half-time than they had done in the rest of the first half. We have had our meetings but talking can only go so far. I will never give up but, now, we have to do it."