The former Liverpool manager was presented to the media yesterday and has already won over President Massimo Moratti's wife, Milly.
Milly said: "It seemed to be the right choice. He is a balanced, respectful and polite man who was able to peak our interest.
"The team that was constructed with love by the Interisti, including my husband, remains in place.
"Now with the intelligence, self-awareness and spirit of Benitez we can experience a new campaign."