I frequently have friends coming to me for resume help/career switching advice because of my past as a recruiter for a very large, local healthcare provider. (well, not local anymore, I moved)
In cases like this and many others where individuals aren't getting the interviews they want almost always comes down to the resume; or more specifically how you've worded the resume. Frequently, and to this day I encourage one to take their resume from a laundry list of duties to a utility belt of achievements and accolades.
By this, I don't mean promotions or medals awarded, but if you had to look at one line per resume and decide who would get the job, who would you call back:
Resume A: "Follow-up on sales leads and deliver cutting-edge presentations on our product"
Resume B: "Increased subproduct sales utilizing methods x, y and z; resulting in an n% revenue boost for Q1 2013"