I found this quote in a ripped out page of a magazine, but it bears some thought:
"Nothing repels a top candidate like a job description. You have a wonderful opportunity to sell, not a position to fill." These words by John Chaisson, a member of the faculty at Thought Leadership Institute, points to the biggest disconnect found within organizations--they simply look for bodies instead of the charisma, leadership essence, and dynamic skills that can propel them to a dominant position in their marketplace.
Consider the opposite approach offered by Lou Alder of The Alder Group: "Why would a great person who already had a good job want to work here?"
Review your hiring practices. What compelling opportunity are you presenting? What real projects are you asking this person to handle? What challenges are you asking them to fix? Are you being specific? People want to see the reality the are considering. They want to picture themselves actually engaged in solving your needs.
If all your recruitment process offers is a job description, do not expect to land top talent. They will go where they can viscerally feel the challenge.