December marks the start of the middle third of the Premier League season, when teams know where they are going wrong and what they have to fix. Arsenal’s big issue this winter is Santi Cazorla, and how they can create chances without their midfield maestro.

Cazorla is a unique player and Arsenal have no one who can step into his shoes and do what he does. Without him, they started to stumble, drawing three big games against Tottenham, Paris Saint-Germain and Manchester United. “We lost a little bit the quality of our game,” Wenger said, “and with that we lost our results.”

But on Saturday that changed. Arsenal put five past West Ham, but created enough chances to score 10. It was their best performance since Cazorla damaged his ankle back in October. Wenger was delighted afterwards, saying that it did not just come down to his players playing better, but differently. Granit Xhaka and Francis Coquelin in midfield showed for the ball every time, giving Arsenal a stability in possession they have not always had recently.

“We found the flow again,” Wenger said. “Losing Santi not only puts pressure on some players, but you have to find a new balance again. Every week I try to a little bit here, a little bit there, to find it back. Overall, he was our deep playmaker, a guy who all our defenders think ‘where is Santi?’ After that, you need to find new ways to build the game up.”

By scoring goals and winning games, Wenger hopes that his midfielders will demand more of the ball, improving the fluency that had dissipated in recent weeks. “Balance is as well linked with confidence, and results like that give you confidence,” Wenger explained. “Everybody wants the ball. Now everybody knows that it’s not only Cazorla who will be available, I have to move as well, and that is linked with the confidence. When you have confidence, you move the ball.”

While Arsenal are starting to find solutions to their problems, West Ham are showing no signs of being able to do the same. Slaven Bilic spoke at length after the game about their lack of intensity and how the atmosphere in training needed to change if results were going to do the same. How he would go about making that change, though, was not clear.

“There is no secret, we have to work harder,” he said. “You can ask me to say words, or a secret formula. You have to work hard. We changed the system, we changed personnel, we turned things around and we used a lot of players. We try everything to try to provoke something new.”

West Ham vs Arsenal player ratings Show all 22 1 /22 West Ham vs Arsenal player ratings West Ham vs Arsenal player ratings Lukasz Fabianski - 7 LONDON, ENGLAND - JANUARY 12: Alexandre Lacazette of Arsenal collides with Lukasz Fabianski of West Ham United during the Premier League match between West Ham United and Arsenal FC at London Stadium on January 12, 2019 in London, United Kingdom. (Photo by Marc Atkins/Getty Images) Marc Atkins Getty Images West Ham vs Arsenal player ratings Pablo Zabaleta - 7 Soccer Football - Premier League - West Ham United v Arsenal - London Stadium, London, Britain - January 12, 2019 West Ham's Pablo Zabaleta in action with Arsenal's Sead Kolasinac REUTERS/David Klein EDITORIAL USE ONLY. No use with unauthorized audio, video, data, fixture lists, club/league logos or "live" services. Online in-match use limited to 75 images, no video emulation. No use in betting, games or single club/league/player publications. 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Bilic did not want to blame the new ground, even though it is so obviously lacking compared to the old atmosphere at Upton Park. “I am a little bit fed up if we want to justify the move,” he said. “This stadium will never be Upton Park like the Emirates is never going to be like Highbury.”