Human Resources also serves other purposes; they will be actively involved in posting jobs at a company, vetting resumes, and scheduling interviews. HR staff will also keep files on regular and contract employees, mediate problems and firings, and instigate improvements at the workplace, usually related to employee fitness, health and wellness. The role of HR may be slightly different from one company to the next. Ultimately, the duties and responsibilities of Human Resources will be dictated by a company's CEO (Chief Executive Officer) or perhaps a Board of Directors, this is why Human Resources is really another branch of a corporation, rather than an independent entity.
The amount of Human Resources staff a corporation needs depends on its numbers. A huge company, such as a big pharmaceutical or motor vehicle manufacturer, will need a vast amount of HR representation. A smaller firm may only need a single Human Resources consultant or staff member. Medium-sized companies will need three to ten HR staff members to support the amount of regular staff they employ at any given time.