How about “resources” or “headcount,” or my very favorite emerging term, “human capital.” That last is an abomination: I bet somebody thought, after far too little consideration, it would make people feel valued, but “capital” denotes an owner/property relationship, which may be how your employer views you, but we’re supposed to be at least pretending to ourselves that owning people isn’t okay anymore.
Um, no, “human capital” implies exactly what you think it does.
Indeed, the new leader of Alberta referred to developmentally disabled people as “reduced human capital” defending employers paying them less. It is meant to define people solely in terms of their monetary value.