I will say bringing in Xavi is going to be a good move. Because you know AC Milan are definitely not finding the results that they are looking for and there is no point in keeping a coach that you don't like or you are not getting good results from.
You know, Xavi did not bring bad results with Barcelona at all. He also brought in a La Liga title for Barcelona while he was the coach. The only reason why it seems like the decision of sacking him is not that bad is because Hansi Flick is doing a good job. So I think bringing him as the new coach can actually be a very good decision for the Rossoneri management. But I don't know how he is going to adapt to a different league. Trial and error is something that no club likes to do especially with coaches.
That's true, quite a different league from the Spanish la Laliga that he's been accustomed to, however it has both advantage and disadvantage side, the disadvantage is that he's going to start learning and experiment things during this his first season, which may result in him not performing good as expected, whereas AC Milan at the moment is highly interested In a Manager that will give them immediate results.
But the advantage side is that most of club he's going to be facing hasnt really had an encounter with Xavi before and hence aren't familiar with Xavi's tactical system, we may see him win his games and thereby turn things around.
I tried to look at the Serie A standings, and apparently Milan is now in 7th place. It is very natural that many are dissatisfied with the performance of the team and Fonseca, especially since Milan has actually declined this season. I also read several newspapers, it is very likely that Paulo Fonseca will be removed from the head coach's seat. Apart from that, I don't know his status until now. However, looking at Milan's list, Paulo Fonseca is still the coach. Speaking of Xavi, Xavi has actually handled other clubs before La Liga. Although the club is from Qatar, at least he can adapt to the style of Italian League football. Like Hansi Flick, he also studied and adapted to the style of Spanish League football, especially Barcelona's philosophy. We don't know if Xavi is capable if he becomes Milan's coach, but there's nothing wrong with him having potential as a young coach and having proven it even though his second season handling Barca was not smooth. If Paulo Fonseca can't bring Milan's performance much better, then it's no wonder the club will recruit another coach. Xavi? maybe not the ideal option, but maybe he can be given a chance if Xavi is willing. btw, I don't get any newspaper references if Xavi is linked with AC Milan to replace Fonseca.