No, they certainly could but usually not (or a bunch of managers sit together). No, the center has a general mission but employees are either actual gov or not actual government although many of the latter have been there for years and years. For most of us there isn't really a distinction (I was one of the "other" for 7 years before I had a chance to switch over) but in the bureaucrats eyes (especially from HQ types from out east) there is a big difference. We just try to ignore them for as much as possible