“Oh, I’ll just let the HR people write the ad. They’ll know what to say.”
Job descriptions help you screen candidates by making it easier for you to differentiate between the essential and desirable requirements for a particular job. The proper ad can further aid the screening process by offering a candidate an opportunity for a career, not just a job.1 A well-written ad helps the candidate determine whether or not your open position is worth his or her response. Develop an ad that helps the most appropriate candidates respond to you.
1 The importance of distinguishing in an ad between a job opening and a career opportunity is treated especially cogently by Lou Adler, Hire with Your Head: Using ...