We currently use the Import Users feature with Process Manager to manage our user accounts.  If a user has changed positions or roles within the company, Process Manager adds the new role to the user profile without deleting the old role.  We now find that many users have multiple roles (some up to 5) associated with their user profile.  This, in turn, impacts the notification sent to users based on their previous roles, which they no longer are interested in receiving.  

Is there a setting or a way to ensure Process Manager deletes the old roles if changed?  At present, this is a manual process of going into each user profile and deleting the old role, which is time-consuming.