Scene 14; "The Return to Sicily"

This is when Michael seeks the advice of long-time friend Don Tomasino in the front yard of a house in Sicily. It is here when Don Tomasino states that only Lucchesi has the power to "reach between these two worlds."

Now, Michael is still the Don by this time, of course. He has yet to give Vincent the order. However, during this scene, it is Vincent who states what is going on and what they are "obligated" to do. Carrying himself in the utmost manner.

I just want to know what his role here is because, to me, it gives off the image that it is more or less him in charge of what's going on, the way he states how things are going and what they should do.

Michael comes off as a translator, more or less.

To be blunt, I thought Vincent's role was to sit down and shut up; to keep eyes open and ears sensitive to what's going on. What changed now?