When the hiring decision is left with HR that position is called "Staffing" - if there isn't a full office of HR specialists then it's done by the HR Manager.
HR Managers and Staffing Specialists aren't entry-level jobs. Most require at least 5 years of progressively responsible experience as an HR assistant and/or a master's degree.
Not long ago an associates degree (or even no degree and "working up") would have been sufficient to land an HR Assistant job but these days with so many bachelor's grads looking for work it's just not happening so much anymore. The rules laid down by the government has made compliance a complicated effort too - HR is much more complex than most people realize.
is the OOH entry for HR Assistant. Get some serious computer skills and accounting/bookkeeping and you have a good shot with an associates degree but advancement will be limited. By "computer skills" I mean something like http://www.microsoft.com/learning/en/us/certification/mos.aspx
and not "I know how to type in Word."
is the OOH entry for HR Professionals. Notice the huge range of skills under "nature of work" and the requirements under "training". Most important "many colleges and universities do not offer degree programs in personnel administration, human resources, or labor relations until the graduate degree level." A master's degree is increasingly required in HR for specialist and management positions.
The best associates degree to get into HR is accounting. Payroll, compensation, and benefits are functions of HR and require accounting skills most people don't have.