Inter are on the comeback trail having won their last five games in Serie A.
"We still haven't done anything yet," the former Roma boss said. "We have margins of improvement.
"The derby this weekend? There is passion and it is my job to control the emotions. Milan will have more pressure on them than us, but the derby that will really count will be on May 6.
"That is at least the hope as it would mean that we are still in contention for an important objective."