It would probably never work but if someone is leaving a role, they're probably the best person to write the job description. I used to say a supervisor instead

It would probably never work but if someone is leaving a role, they're probably the best person to write the job description. I used to say a supervisor instead of HR, but then realized that a lot of supervisors (or equivalent) had a limited view of the day-to-day. HR usually has no clue.