And, speaking from the world champions' altitude training base in Sestriere on Sunday, he also suggested what his preferred formation is likely to be at South Africa 2010.
"Everyone plays with one true lone striker and nine (outfield) team-mates to run around and defend, no matter how many forwards are on the pitch," he said before suggesting he might play 24-year-old Marchisio behind his frontman.
"I like him a lot in that position because of all our midfielders he's the one with best movement off the ball," the coach went on. "He gets in gaps, follows the action and appears in empty spaces. And on top of that he helps to cover the midfield."
Another player who might be given an unusual position is centre-back Giorgio Chiellini. "I'll also try Chiellini out at left-back, I've asked the lads to make themselves available for the cause."
However, the FIFA World Cup winning coach, who quit Italy after victory in Germany four years ago only to come back into the hot seat two years later, refused to give away who his final 23-man squad will be. "You'll just have to have a little patience and wait until Tuesday to know everything."