Rather not see Allegri left, I am in no rush. As long as he has energy, motivation and feel committed to the cause, I trust him.
Also, I never want to see Spalletti here, he's obviously good for top teams and have a decent resume - but he is still not Juve standard. I remember disagreeing plenty of times with his decisions during games (subs and tactical re-dispositioning).
Really not sure what other alternatives I would be happy with, haven't given it any thought. Maybe Jardim. Worst case scenario Allegri wants out (for whatever reason that would be, not like he would reach any higher than where he is atm), and whoever our management believes in - I will believe in.