This is iffy. Part of the function of the Objective Characters is to provide a certain constancy of approach or attitude in order for the audience to gauge what is what in the story. You can get around this by using "hand-offs," the technique of passing a function from one player to another. If you have a single player representing an OS function in one scene, and then a completely different, and possibly contradictory, function later on, your audience is likely to be confused. Since all of the Objective Characters are part of a single story point of view, the Objective Story point of view, their function is to represent those functions objectively. Your MC and IC, on the other hand, will change over the course of the story. They each contain the entire set of 64 elements -- the same elements that make up the entire "cast" of Objective Characters.