Liverpool's second successive Premier League loss left their manager Brendan Rodgers disappointed, yet eager to improve despite a heightened expectation level coming into the new season.
Early goals from Winston Reid and Diafra Sakho put the hosts ahead, and though Raheem Sterling pulled one back with plenty of the game remaining, Liverpool couldn't find the equaliser, and Morgan Amalfitano added a third for the Hammers late on.
"We are obviously a team that is associated with coming out quickly, but for some reason we just didn’t get going," lamented the Reds boss.
"In fairness to West Ham, they came out and put us under pressure on the ball and we were just unable to play around that. Before we knew it, we were 2-0 down and from that point it was very difficult for us."
Rodgers made some early tactical adjustments after West Ham raced into their two-goal lead, withdrawing fullback Javier Manquillo in favour of a third centre back in Mamadou Sakho, and he felt that Liverpool managed to successfully even up the contest, despite failing to chase down their deficit.
"I felt that how they started the game, with two front players and Stewart Downing in behind, they were giving us a problem.
"We didn't look like we could compete with that at that stage, so as the coach you make the change and the system to give them something else to think about.
"It worked reasonably well for us, we started getting the ball into wide players and got back into the game at 2-1. From that, probably up until they then scored the third goal, we had decent control of the game."
Despite the disappointment of the loss at Upton Park, Rodgers continued to be optimistic on his side's competitiveness, refusing to dwell on any possible impact the midweek Champions League game may have had on his players.
"It's something we have got to get used to because we have got plenty more Champions League games," he said.
"I think the group has come a long way in the last few years. To arrive into this season, there is always big expectancy when you play for Liverpool, but after our performance level in the last 18 months, the expectation level as grown.
"But we have to cope with that. At the moment we’re not, it’s as simple as that.
"But this is a group, a very honest group, and we will work every day to get that concentration and focus back again."