For Milan, in-depth research was required for coaching. Time will tell us whether Milan will achieve their goals when they appoint Fonseca as head of the team, but I think Fonseca is a bit of a low-profile coach for Milan. I hope it will be a season full of championship claims for Milan. The rivalry with Inter is very important. Juventus will also be in the race next year. It will be a hot season, on the way to the championship.
Every club that has appointed a coach must have done research beforehand. They are not careless in appointing a coach, but rather the management has seen the coach's ability to build the club.
Paulo Fonseca may not be a potential coach and has experience in coaching big clubs because in his coaching career he has never coached a big club so this is the first time for him to coach a big club like Milan which is a big club in the Italian League so this is a challenge for Paulo Fonseca to show his abilities in building the club, whether he can improve Milan's performance next season because this club wants the league title.
Paulo Fonseca was quite good at coaching the Lille club in League 1 and finished in the top 4, but comparing League 1 and the Italian League is of course very different because they are at different levels but hopefully Paulo Fonseca can show his best ability in coaching this big club. The Milan club is filled with quality and talented players, so the coach only needs to hone the skills of his players and buy the players he needs to match the abilities expected by the coach. It is clear that management must trust the coach because an experienced coach may not necessarily be able to provide a championship, we can see example of Xabi Alonso at Leverkusen