Please I am having an issue and require ideas on how to resolve it.

I have limited slots for technicians and at sometimes in the organization some of the technicians are re-assigned new schedules or they leave the organisation outright.

Now the problem is when this happens they are either not technicians any more (they become requesters) or they are moved to other departments. Now when this happens and there is a change in the configuration of the MESD, the tickets for which they where earlier assigned (assigned/closed) now becomes unassigned.

Please how can I get a work around this because when an audit is performed or report generated we have issues of why this tickets are not resolved