United failed to snatch a draw at Old Trafford thanks to Soungoutou Magassa's 83rd-minute equaliser which left the Red Devils outside of the top four spots once again much to the disappointment of fans.
Manager Ruben Amorim and his side have taken 27 points from 20 games at Old Trafford, and only managed one win from their last five in the league as they continue their poor start to the campaign.
United look far off European contenders, and Keane ripped into his side after the game as they failed to find consistency despite an excellent run of form in November.
“After they get the goal, you are playing against a team in the bottom three, they take their foot off the gas. You're 1-0 up! Take nothing away from West Ham, and they just about deserved the equaliser. You are just putting yourself under pressure. Every time I watch this United team, they are disappointing. They aren't clinical, they weren't nasty enough to get the job done.
“People will be scratching their heads. One minute they are making progress, win and you go fifth. There will be a lot of frustration. Show your quality. In their last three or four games, I think it has been desperate. Really poor. An opportunity to get the job done and they were almost frightened. We are talking about fifth here by the way. Same old problems.”
United face bottom side Wolves in their next fixture, a side who are yet to win a Premier League game so far this season. Amorim must win here or face more calls for him to be sacked as United fail to reach the European spots once again.