If the situation does not change and Milan loses the big match against Inter this will make Fonseca leave quickly especially for now some rumors about several coaches even have the names Tuchel and Allegri who are said to be projected as replacement coaches making Fonseca uncomfortable in the position of coach now.
AC Milan have big troubles now but it started with their doubled bad decision, stop working with Pioli and hiring Fonseca as their new head coach. If they are considering to fire Fonseca, and if rumor is true, I see they are considering two good candidates for the head coach position. Both Tuchel and Allegri are good coaches but Tuchel did not have experience in Serie A so I see Allegri is a better choice for AC Milan. He already had long time in Serie A and also worked for AC Milan in the past.
For now it looks like the sacking will still be a little dampened by Milan's victory against Inter in this derby so Fonseca can still breathe more with this result because after all, the victory he got indirectly secured his position a little and made the mentality of the players increase considering this is a fairly crucial match where not only points are glimpsed but also prestige and Fonseca managed to overcome this with 3 points.
In some other rumors it is said that now Zlatan, who has a pretty good position at Milan, is currently experiencing a relationship breakdown with Fonseca which makes Fonseca's position even more difficult.
Zlatan should not engage too much on big decisions in AC Milan and honestly I don't know he is given that power too. Zlatan was a legendary player but already retired years ago and now his contributions for AC Milan are very limited to mental support for players especially young players.
Actually, this may be true because Zlatan cannot be considered bigger but with the decision now there is a bit of friction because of the disagreement over the management of the club making the situation more difficult when Fonseca said that he no longer needed players but Zlatan was on the opposite side especially now that Zlatan is also considered one of the influential people in Milan.
This is actually too big an act for Zlatan because after all regarding players he should entrust things more to Fonseca and when Fonseca doesn't need players then it means he is enough with the existing squad but Zlatan actually wants to add new players which makes his condition seem stressed that Fonseca is the one who is set too big in this matter.
Let's hope that the friction ends soon because we must realize that this can also lead to new conflicts that ultimately result in even worse performance.