DAILY TOPIC: What must AC Milan do to become great again?

AC Milan have not won anything of note in the last 5-6 seasons, with the Serie A title of 2010/11 being the last trophy to be added to the cabinet. But in this summer, AC Milan have reinforced their squad at great expense. It seems that they will bring honor back to this city. However, after this several matches, it is enough to prove that Milan still have many problems need to solve when they face to stronge opponent. In your opinion, what must AC Milan do to become great again? Change the coach or change the formation? Please support your answer with logical reasoning.

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