Operational needs
Virescit Vulnere Virtus
Unless it's in the offer letter swings don't work Saturdays (unless it's peak) management tried to tell a few swings they would have to work Saturday to get there guaranteed hours and all it took was 1 call to HR and all of a sudden they had 40 hours that week.
of course in a small station generally we don't have most of the issues that a lot of you guys run into
Management can get away with whatever hourlies allow them to. I'm at a very large station. They don't get away with it here either.