Oh man why do you have to compare him to mr. Potato Head, Luigi etc?
Give me a break, we are now the laughing stock of Italy and guess what? Most of our fans are laughing with the majority.
Looking at previous years to conclude that Del Neri will fail:
Diego was great in Germany, so he should be great at Juve > Fail so far.
Melo was great for Fiorentina, so he should be great at Juve > Fail so far.
Amauri was doing fine at Palermo, so he should do fine at Juve > One season wonder
Grygera was actually a very good player for Ajax, but at Juve > Failed
Salihamidzic was Bayern's captain, but still largely failed at Juve.
With this I want to point out that one's history doesn't mean that it'll be the same in the future. As some have said before, Mourinho was a translator for Guus Hiddink in Barcelona, and now they are face to face in the CL-final. Del Neri hasn't even TRIED something at Juve and some members label him as a complete disaster. You actually tend to forget how good we had it with Ranieri, the 'incapable'.
So start supporting your team and stop whining about everything, cause one's that do not support their club in hard times is what in my dictionary is described as a fake fan