If this was planned to happen, they sure should have a replacement ready, and it should be a good one. Pochettino/ Pep the only ones I can think of.
Or was this a sudden decision? Hard to belive that, Allegri flopped in CL this season, but won the Serie A, and has overall a succesful time in Juventus.
Would they fire him for a Inzaghi or Mihajlovic? Nah I cant believe that, the worst case schenario IMO is Conte or Sarri (some rate them, some dont, maby our board like them)
Before Chelsea Sarri was a perfect coach IMO, i rated him high in Napoli. Okey time in Chelsea ( Pool, city is far better) and now he is crap? His football could work in Juventus, not my first choice, but rather get him then Inzaghi or Mihajlovic.