casey mcfarland is his deputy. mark landler, give us a picture of the national security council staff. how many of those positions are going to be holdovers if any, and how many are going to be empty when the trump team comes in? >> well, roger knows more about this than i do, but at the level of the professional staff, you have a lot of directors in the n.f.c. the senior directors tend to be political appointee, most if not all of those jobs will be vacant and will be filled by the incoming administration, but below that you have a cadre of professionals at the director level. most of these people are see -- see cunsded from other agencies. they are at the white house for a set period of time. when the obama administration came in, they basically held over people in those positions, which provided the important continuity. the trump team has told me they plan to do the same thing. so it is not as though general flynn will come in and find an empty building. he won't. he'll find dozens of very well briefed, experie