The “signed in” person is not an “administrator” or is not either the “Requested By” or “Assigned To” person; i.e., “administrators” can change any Request, and if not an “administrator” only a “logged in” person that is either the Requested By or Assigned To person

can change the Request.
We could provide a ui with group of radio buttons to allow to switch role.
it can be a new view, or we can put in home view.
this is not production, but will allow to demo switching user
From requirement document:
The “signed in” person is not an “administrator” or is not either the “Requested By” or “Assigned To” person; i.e., “administrators” can change any Request, and if not an “administrator” only a “logged in” person that is either the Requested By or Assigned To person  can change the Request.