Ida, like Manna before him, is a good example of what's been the real role of a consigliere; at least in more modern times. It's not really an older, semi-retired guy giving advice to the boss. Nor is it even really a guy voted on by captains who presides at all sit downs. It seems the boss pretty much chooses whomever he wants for the position, and the title notwithstanding, they continue to be directly involved in running a crew or faction of the family. To put it simply, functionally they are more like a captain but hold a formal position in the administration.