What worries you the most right before you go looking for recruits?
For most recruiters who have answered this question, the response has boiled down to one point- initial recruiter mistakes are the costliest.
Is your job description plain and vague? Are you too focused on the degrees? The credentials? What are your filtering questions? How many are there? Are you rejecting overqualified clients automatically?
More information: http://multirecruit.com/blog/recruiters-here-are-the-top-ten-mistakes-you-shouldnt-ever-make-while-hiring/