Despite West Ham's lofty position in the Premier League, manager Slaven Bilic believes the team can still improve in every aspect.
Six wins and two draws from their opening 10 league games have seen the Hammers rise to third place in the league, only two points behind pace-setters Manchester City.
Bilic is happy with his side's strong start, but not yet completely satisfied and is confident they will continue to get stronger throughout the season.
"It is only a start but we are confident, we are playing well and if we continue to work hard as we have since day one, of course there will be ups and downs results-wise, but I don't see a reason why we should drop dramatically," he told Sky Sports.
"The core of the team has been playing together for some time now and that is the greatest thing, we only added some players we thought were necessary to make the team better.
"It is still early days to say where the limits are for this team – what is definite is that we have lots of room to improve from every aspect. Some players know each other only for a couple of months so we can improve organisation and transition.
"We can improve small things like set-pieces and second balls. We definitely have to improve in shooting because we are not shooting enough. That doesn't mean I'm not happy with the performances so far but we can improve in absolutely everything."