This is one of the major dangers often ignored when treating universities like a (bad) business* and treating staff transactionally. The system relies on staff not treating it transactionally.
Just a restructure takes 2 yrs to work through.
(*yes I’ve seen plenty work over hrs in businesses too)
Universities only work because a lot of people do a lot more work than they are paid to do. In times of special distress (eg a merger), we are suddenly expected to do even more work than that and people check out or burn out.