Are there actually people doing work at Boeing? As far as I can tell they outsource every last thing, retaining only a management hierarchy internally. Elements

Are there actually people doing work at Boeing? As far as I can tell they outsource every last thing, retaining only a management hierarchy internally. Elements which were once Boeing are now spun off subcontractors, and machining, assembly, component design, integration - all of these are third party activities. What do Boeing actually do?