Who should write job descriptions in your biz? Some enterprise co.s have 17,000+ people writing JDs. Others have only a few who crank out 1,000s per week.
There are also what I call editors and approvers. These people on your team might not write full JDs, but they are part of the process — or give the final OK before job postings are published to your career site (and job boards).
There’s no correct answer for who should write job descriptions. It all depends on your company size, workflow, and budget (if you plan to outsource it).