I am just finishing up processing about 30 requests to join a linkedin.com group I founded awhile back. I have been amazed with the self-descriptions on the linkedin.com profiles and headlines that I reviewed. They were either job titles or a vague gushing exuberance of descriptive prose that could possibly define many professional including me.
Here are some examples:
"visionary leader and motivator of teams"
"deadline driven project manager"
"builds, transforms and leads global operations for technology companies"
"premier relationship manager"
I would suggest whenever you write self-descriptions or personal marketing that you ask yourself if the wording is so vague, generic and superficial that is could define your competition. If that's the case, then work with someone to draw out and make note of your unique contributions through accomplishment stories that you tell them. It's an age old practice, the doing of accomplishment stories but it really works.
I have never subscribed to the hire-a-resume-writer/brander who takes your 4 page filled out personal data form, goes away and writes a flourishing description of you. The trouble with that is that you don't own it and will not be able to easily to speak to those statements with greater detail and depth.
Tell stories, take notes, get friends to listen and provide feedback and input. You will be pleased with the results that will translate into a resume, an elevator pitch and social profile.