In the National themed Gazzetta dello Sport edition, there is a page dedicated to the probable starting line up for the World Cup 2018 qualifiers. According to GDS, with Ventura‘s squad, it is possible to play with two formations:

Donnarumma in goal; Florenzi, Rugani, Bonucci and Spinazzola behind; Verratti-Gagliardini in midfield; Chiesa and Bernardeschi on wings; Belotti and Immobile in attack.

The second on:

Meret in goal; Caldara and Romagnoli in the middle; Zappacosta and De Sciglio as fullbacks; Pellegrini and Locatelli in front of the defense; Berardi and Insigne as wingers; Petagna and Verdi in front.

Source: Gazzetta dello Sport