At ezy, we have one sccm and then the two crew are either 2 or 3, sccm decides in the briefing. When we get the A319 next year, we'll have 4 crew, although the role of the 4th crew member hasn't been decided as yet. A new entrant can fly as the no2 if they want to, which I encourage as we have so many crew coming on line that the more experience they get, the better.