But that already feels like a distant memory after back-to-back home defeats against Leicester City and now newly promoted Bournemouth.
So what did we learn about West Ham from the game?
1) Hurts to admit it but West Ham miss Sam Allardyce's organisation
West Ham looked like a team of players who had only just met prior to kick-off in this dismal defeat. There was little evidence of any gameplan but what was abundantly clear is that the team, and defence in particular, look totally unorganised.
Allardyce's relationship with the fans and club had reached its natural conclusion of that there is no doubt. But the likes of Jenkinson and Cresswell, two of West Ham's best players last season, are totally exposed by Bilic's system and as a result cannot get forward as much as they are used to.
It may hurt some fans to admit it, but after the Leicester and Bournemouth performances, it is clear Allardyce is missed from an organisational point of view.
2) West Ham's squad is alarmingly small and weak
West Ham may have signed eight players this summer, but only three of them are improvements on the first-team in Dimitri Payet, Angelo Ogbonna and Pedro Obiang.
The pre-season promise from the co-owners to invest significantly in the squad has also been something of a red herring. So far West Ham have a net spend of less than £18 million and have lost their best player from last season in Stewart Downing. There is little hope that the squad will be added to significantly in the remainder of the window and 18m is not a lot for a Premier League team in this day and age. It has left many Hammers fans feeling as if they have been somewhat duped yet again.
3) Worst possible start to historic last season at famous ground is a major concern
What should be a celebratory final season at their famous Boleyn Ground home of 112 years is fast becoming a nightmare for West Ham. The club said they were determined to make it a fortress this season to give Upton Park a fitting send-off.
But the first two games of the last ever season there have been defeats and against opposition they should be expecting to beat. The club simply must be in the Premier League when it moves into the Olympic Stadium and perhaps that is already hanging over players' heads and instead of using the landmark season as a positive it seems to be something of a burden.
4) Slaven Bilic MUST get to grips with ill-discipline
West Ham picked up their fifth red card in just nine competitive matches since Bilic took over when Carl Jenkinson was sent off against the Cherries. That is an astonishing record and one which has already cost the club dear this season in both the Europa League and Premier League.
Although Jenkinson was awful, he will now miss a tough away match at Liverpool. And the Hammers squad will be shown up for being as weak as suggested in point number two by the fact there is no natural replacement to play right back.
5) It's going to be a long hard, relegation-threatened season
West Ham will have to fight hard to secure their Premier League status for next season if the last two games are anything to go by. The lack of gameplan, unity, discipline and options in the squad as well as the club's bizarre decision not to officially appoint an assistant manager give everything an unprofessional feel. It all looks disjointed, players look unsure of their roles and responsibilities in the new setup and there is little hope of that improving anytime soon.
Bournemouth have shown the newly promoted sides are not in the top flight to make up the numbers so the survival target will be a high one this year. Drastic improvements are needed if the Hammers have any dreams of getting anything away to Liverpool next week. There is a horrible sense of de ja vu over the Bilic appointment alongside Avram Grant and we all know how that ended.