I guess we can expect to see a 3-5-2 system against Udinese. Without Vučinić and Pepe it's the best solution. Both Quag and Del Piero play much better in 2 man attack.
Probable lineup:
Buffon
Barzagli - Bonucci - Chiellini
Lichtsteiner - Vidal - Pirlo - Giaccherini - Estigarribia
Quag/Del...