Actually I see Pioli is much better than Fonseca. Even though Pioli last season couldn't make AC Milan develop better, at least he didn't make AC Milan start the season badly. And it was very rare for there to be internal problems between players and coaches at that time. Even though there has been one, it can be resolved quickly.
Stefano Pioli's dismissal was a very good coach for AC Milan but it was just unfortunate for him that last season was not so much good for him because all his strategy was not bringing any positive outcome for the club, though the position AC Milan came out on the table was not bad but the management was not happy with the results because they expected him to do more better, for me I would have just prefer Stefano Pioli's dismissal to remain the AC Milan coach because he is very experienced so instead of firing him they should have just allow him to complete his contract because the contract was supposed to end on 2025 but they decided to cut it short for him, however let's see how far they will go under the coaching of Paulo Fonseca.