Prandelli would be perfect, although i think he's a very loyal manager and he's really building something with Fiorentina, i cant see him leaving them.
Just because no one has mentioned this name yet i will bring it up:
DISCLAIMER: The disclosure of this name by NO MEANS indicates that he would be my preferred choice, or even in my top 3. The reason for bringing up this name is his current availability and previous history of success in the Italian League.
I think it is worth a mention anyway as i would like to see what other people think of him..... Sven Goran Eriksson?