There have been suggestions that Sebastian Vettel could join the team as early as 2014, but Domenicali dismissed such rumours.
"Could Vettel and Alonso one day be part of a dream team? I think our President has already commented on this subject several times: a dream team is fantastic if it is correctly managed, but at the moment we are not looking at that, because we want to ensure the team is as well balanced as possible," he said. "You have to be very careful, not just in Formula 1, but in sport in general, because sometimes, putting together all the Number Ones can lead to more negatives than positives."
Domenicali believes that Felipe Massa's problems are now behind him after bouncing back from a disappointing start to 2012 to finishing seventh in the championship.
"I think the toughest part of Felipe’s career is now behind him," he said. "After last summer, his approach turned about and as a result, his performance on track changed and he managed to show just how talented he is. I’m sure his problem was not linked to his contractual situation."
He added that his decision to retain Massa will have positive effects on Alonso.
"Personally, there was a lot of pressure on me regarding possible changes, but in the interests of the team, I preferred to wait and today, I’m convinced that keeping Felipe in the Ferrari family was the right decision. His performance in the second half of the season contributed significantly to our second place in the Constructors’ classification: for the team that is a strong point and for Fernando, it provides further impetus to try even harder."
Domenicali also hit back at recent accusations by Red Bull's Helmut Marko that Alonso concentrates too heavily on politics.
"As usual, there are people who try and stir up the politics, believing they will provoke a reaction, but I am deaf to these things and I believe Fernando is totally focused on his performance, while I can assure you that the team will give its answer on the track, with deeds not words."