As Manchester City was being taught a football lesson by Everton last Sunday, the television cameras panned to Pep Guardiola in the visitors' dugout. For the most decorated manager over the past 10 years Guardiola cut a strangely sad figure, sitting motionless, a man alone with his thoughts as Everton's fourth goal went past Claudio Bravo.
His body language was of someone who knew the questions, but did not have the answers. Or if he does know the answers he cannot put them into practice.
City on Saturday hosts a buoyant Tottenham, which arrives at the Etihad on the back of six consecutive league wins. Spurs have the best defensive record in the Premier League having conceded only 14 goals; in contrast City has just four shutouts in 21 games.