He quite rightly should be fired already, i mean, the performance from Juventus this season has been absolutely abysmal, they are out of the CL in the group stage and they sit in 8th position in the Seria A table (and no chance of winning it right now with the way they are playing), if all of these aren't enough to cost the manager his job, then i don't know what will. Having said that, it might be a case of no replacement in hand, but there are good managers who are currently jobless, like Tuchel and Pochettino, and quite a lot of good managers wouldn't mind quiting their team to come coach Juve, at the moment Allegri is still in the job, but i don't think it will be for too long again.