Remember the Plum Book, an interesting current and historical document (and usually a federal policy wonk job seeker’s tool)?
You can read the December 2016 edition of the Plum Book and previous editions. (If those links fail, just search these keywords: plum book United States Government Policy Supporting Positions)
If you are seeking a job as a U.S. Presidential and Executive Office appointee, you’ll need to update your Plum Book findings by searching more deeply, by agency, by hiring authority, by job posting service, and by news reports on the status of the position or its current or previous incumbent. You can also contact your U.S. Senators, some of whom will be members of the Committee that compiles the Plum Book (Committee on Homeland Security and Governmental Affairs United States Senate).