How can I update Job Family, Job Function and Organization on Posted Requisitions?

Summary:

Our organization went through a job family/job function exercise and the values have now changed? Has anyone come up with a way to update posted requisitions with cancelling them and re-entering them into ORC?

Content (required):

Hi All. In all my reading, it seems like we cannot use HDL/HSDL to update job family, job function and organization on a requistion that has been posted. Has anyone come up with a way to do this without having to cancel and re-enter all their requisitions? We currently have 240 active requisitions with applications in several different states so we will not be able to cancel the current requisitions however we cannot have one set of requisitions with the old values and one with the new values. Any guidance would be greatly appreciated. Thanks