I didn't want to start posting here before Allegri is out but now I really want to post this : I'm not defending "the management" (whoever they are) but what actually can they do?
You cannot reason with religious zealots, especially religious zealots who are in positions of power, when they're hell bent to fight against their perceived ultimate boogeyman.
JJ is unfortunately just a single club surrounded by religious zealots who want to kill it, no matter how and where we fight, as long as the remains to take place in Italy, the zealots with their irrational hatred will be there ready to inflict troubles with any method possible.
And they outnumber the people who support or work for us.
Even if you go to outside sporting justice system, it's still in their home turf, Italy, there will still be their brothers, their cousins, their friends who equally hate us for reasons and be there ready to strike us... Or even if somehow the people over there are impartial, they will face not only social pressure but perhaps even political and economic pressure to rule against us anyway.
Then there are the neutrals, that don't hate us perhaps but because they're also in the same institution of us, then their livelihood also indirectly linked to our plight, they will surely want their lives goes on as normal as they could be even at our expense. Do you want your life to be interrupted just because your neighbor are in dire situation? No, most of us won't be that sympathetic...
The same goes with intl institutions like UEFA too, sure currently they have a beef against JJ and I don't doubt they want to make an example out of JJ but even when they were more neutral like in calciopoli days, surely they only want to continue their life and corrupt business as normal as they could be, they don't want to wait for this circus over here in Italy, even if that means they violate sportsmanship for that... As long as there's no worldwide backlash or potential backlash, they would swept it under the carpet.
So how exactly you want JJ owner to fight? And after all they too have their own life anyway, it's not worth getting into fight with a whole country over this, unfortunately. Especially when it's not about their own life... Even if I were an agnelli and in charge of the club right now, I would only say to the dead grandpa : sorry gramps, this shit isn't worth my own life.
As for selling the club? Well which sane international caliber businessman/men/group want to put their stake in this literal hell house circus? Maybe only government affiliated or sponsored entity would dare to put their stake into this kind of situation.
The only real solution to this is IMHO to move the club to another league, even if the club has to start from the bottom, but we know that's another whole can of worms right there.
This is the real curse for JJ and it's fans, not the 7 cl final loses, but this, being in the middle of a self perpetuating socio-political insanity of a land that is beyond hell which is Italian football.