It looks as if he will join Scudetto rivals Milan, as Juve pulled out of the bidding war.
"We are covered in that role and our plans are different to those of Milan," said Marotta.
"There are some clubs who on top of the technical gifts also look at the professionalism of players before making a buy.
"Every now and then Cassano has let himself go in unfortunate incidents, such as the one with President Riccardo Garrone that made it necessary for the club to intervene.
"In any case, I hope Cassano soon finds a club, as he is one of the best players in Italy, if not the world."