He said: "Independently of whether Krasic is present or not, Juve must still improve a lot after all the changes in the summer.
"It's normal that it takes time to get organised. It's a Juve that aims for something new, focusing on youngsters who are still not at the top, so highs and lows are inevitable.
"Alex Del Piero is the only constant at Juve: He remains a great player."
Turning his attention to Milan, Ancelotti said he has been most impressed with Rino Gattuso.
"Aside from Ibrahimovic and Robinho, and the others, who have been investments of great value, for me the big surprise is him.
"Rino has got back to his best. He is the real transfer coup.
"Pato doesn't disappoint. If he is healthy he scores goals. His highs and lows are only physical. Ronaldinho is adapting to a more central role.
"He can still give a lot. Boateng is a 'multi-role' player, the kind everyone wants. He is very interesting."