Former West Ham coach Stuart Pearce fears they risk being stuck in the relegation battle this season.
Pearce has warned the Hammers they need to get their act together fast, or be faced with playing catch-up for the remainder of the campaign.
Asked if he is surprised by West Ham's early season struggles, the former England defender told talkSPORT: “Yes, especially when you look at the money that has been spent this summer.
“But the other side of that is Manuel is still getting to know the players, not only the ones he had already got there but also the nine new ones who have come through the door.
“I don't expect them to be around this position at the end of the season, but a good start in the Premier League is absolutely vital and unless they galvanise a result very soon they're going to be permanently playing catch-up.
“But they need a result, and quickly if they can."