Cost centers
I once joined a thousand-head company where everyone worked with everyone else and half of the job well done was done informally, usually. Then the parent company needed to shed some MBAs for a few years before retirement, which brought about things like enhancing synergies, internal marketing and internal (inter-department) billing and some more MBAs to manage all that. The company did survive, mind you, but had become a hell to work for by the time I quit. Synergies, they called it.