It is better to go through the agencies Duke work with,that makes it easier and get your foot in the door. They are Aerotek, Grace Federal and oh yeah! Duke Temporary Services.
If you are from the area, it's who you know. If you are from another state it will be easy to get in .
Make sure that your resume consist of certain keywords that pertain to the job and job description. Most and if not all big organizations use software that scans the resumes that are submitted by looking for keywords.
Keep applying and have patients.
Answered - PRMO employee (Former Employee) - Duke South