Mourinho believes that coaches need to adapt their ideas to their team's strengths and weaknesses. He pointed out that Guardiola had a good goalkeeper in Joe Hart, but he still wanted to play from the back, which made things complicated. Guardiola eventually signed Ederson, a more skilled goalkeeper, to address this issue.

Last season, Manchester City struggled with an aging and injury-hit squad, making mistakes and lacking confidence. Guardiola himself acknowledged that their tactics were not working as well as they used to. Mourinho, who has experienced similar struggles in the past, thinks that City need to change their approach, especially after their recent loss in the Club World Cup.

The question is whether Guardiola will listen to Mourinho's advice and adjust his tactics to suit his team's needs. This could be a crucial decision for City's success in the modern game.