I tend to think PLACEHOLDER either means Whitaker or it represents what will soon be rolled out w placeholder/intel assets/talking heads ie people like Catherine Herridge would be the placeholder to rollout and expose one thing, John Solomon another, Meadows another, Nunes another and so on down the list. Just spitballing. May be Whitaker too because he is just holding the position/place during this phase.
I think Whitaker is going to raise so much hell that they'll vote anyone we want in to get rid of him faster.