As manager of Southampton, Ronald Koeman claimed his first Premier League win against West Ham in August 2014, an outcome he hopes to replicate as Everton look to get back on track against the same opposition on Sunday.
Five winless matches in all competitions for a team have checked momentum. Defeat at Burnley last time out displayed many of the longstanding traits that Koeman must eradicate from this squad if Everton are to push on.
Keen to banish lingering flaws from Roberto Martinez's tenure, Koeman and his players have something of a point to prove in this fixture especially.