Yet it is the Hammers' marquee summer signings, Hernandez and Arnautovic, who are now flourishing following the slow starts to the season which mirrored that of the team.
New arrival Patrice Evra has a "chance" of making a swift debut for West Ham United in their Premier League clash with Watford this weekend, according to manager David Moyes, who insists he has no concerns about the controversial manner of the experienced left-back's departure from Marseille.
While West Ham continue to sit in 12th spot in the Premier League standings, they now have 30 points to their name and a lead of five points over the relegation zone.
Thus, if West Ham are to stop themselves from falling into the relegation mire, Moyes needs to place his faith in Hernandez.
Arnautovic had scored four goals in six games before he suffered a hamstring injury on January 20. We still merited it, we stuck at it and got the job done.
Jan Kruger GettyImages
But any early promise quickly vanished, as West Ham woke up.
In a candid interview with West Ham TV about the future of the club, Sullivan added: "I want to speak directly to the supporters and say how important it is that we all pull together during these times".
He made his return to the starting XI against Watford at the London Stadium and capped a fine individual display by scoring the second goal in a 2-0 win.
"Winston Reid has had a bit of a throat infection but apart from that we're getting a little bit more like it. Michail and Marko are getting closer..." We are not going to games for any reason other than we love West Ham.
"He's a good manager and will prove it".
West Ham should have finished Watford off 18 minutes from time, but Hernandez failed to square to Arnautovic after a darting run into the area and Karnezis managed to halt the striker. They have won just two of their last 13 Premier League matches and have lost eight times during that period.