To change the Hiring Manager for a specific Work Order, click the three dots and press Update Hiring Manager.
On the dialog shown, press the pencil to show the list of available Hiring Managers for your business. Users with user role Admin, General Counsel, Contract Signer, or Hiring Manager can be assigned as a Hiring Manager for specific Work Orders or specific Vendors.
Then, select a Hiring Manager
Finally, decide where you want this change to affect only the specific Work Order or if you want to update the Hiring Manager for this Vendor in general (so that all future Work Orders for this Vendor use this Hiring Manager as well).
Make sure to press Update to complete the change.