They used to be called Personnel and their job was to pay salaries, keep track of vacation time, medical reimbursements and the like. Actual work. Good times.
Want to travel back in time? Go work for a small company. Our two dozen souls are human resourced by the COO, who hires and fires, and a manager of the basic paperwork. There are no layers to fight through, you just call the boss, and he's refreshingly blunt.
But warning, there are fewer places to hide at SmallCo.