When I took this post, the first and best decision I made was to retain every single senior official I inherited from Secretary Rumsfeld, including his personal front office staff, most of whom have been with me to this day.
Single-use zoning and planning for different functions was thought to be efficient, but we now know that mostoffice buildings are grossly underoccupied, with only 30% to 40% of their workspace used in a typical work day, never mind the gross inefficiencies of time and energy spent on large scale mass commuting.