The 67-year-old feels the Brazil international could decide Sunday's match, and believes there's no clear favourite ahead of clash between the fierce arch-rivals
The Nerazzurri twice defeated their city-rivals in the 2011-12 Serie A campaign, and the supremo has set his sights on yet another victory on Sunday.
"It is possible that Cassano could make the difference, but I personally think that Coutinho could decide the game," Moratti told reporters.
"You can never tell who are the favourites ahead of the derby. Milan won a difficult away match in midweek, but I think we are on the same level.
"I hope that it will be a great game for the fans. Expectations are high and hopefully we will do well on Sunday evening."
Sunday's encounter kicks off at 20:45CET.