The Hammers let a lead slip once again at Stoke last weekend and have now thrown away 15 points from winning positions this season.
A lack of goals has also been a problem for Allardyce’s side but England striker Andy Carroll may be finding his top form at the perfect time for club and country.
Manchester United arrive in East London for the Premier League clash tonight and Allardyce has demanded his side become more ruthless and clinical when finishing teams off.
“We might have had 13 clean sheets this season, which is a record of which to be proud, but a weakness has been that, when we go in front, as we did against Stoke, we don’t go on to win enough times,” Allardyce wrote.
“We’ve thrown away 15 points from winning positions this season and that is not good enough. I do believe, though, that refereeing decisions at Everton and Stoke have cost us at least two points.
“One real positive last weekend was the goal for Andy Carroll (above) and, in my opinion; he is certainly not out of the reckoning for Roy Hodgson’s World Cup squad because there is no one else like him.”