Executive recruiters who specialize in PR will generate higher-quality candidates in a shorter amount of time because they work in a very niche talent pool and go very deep. The best way to encourage an external PR recruiter to dedicate their efforts to your particular search is to be open and communicative.
Recruiters are fueled by lots of information about the position and company up front - and then feedback, feedback, and more feedback about the candidate rŽsumŽs and interviews, ...