Angry West Ham boss David Moyes accused his players of lacking fight after they escaped from Shrewsbury with an FA Cup replay.
The Hammers needed Joe Hart to keep them in the competition after his saves from Mat Sadler and Shaun Whalley secured a 0-0 third-round draw in Shropshire.
The League One hosts were the better side throughout even though Moyes made just four changes from Thursday's 1-1 draw at Tottenham in the Premier League - but the Scot was upset with the Hammers' commitment.
'I don't think we showed any quality and the biggest disappointment is I didn't think we showed enough steel,' he said.