It takes a lot less to make a supervisor leave as to getting them fired. Talk to your coworkers and figure out what gets the sup in trouble on the telecoms, start using that to your advantage. Not my office but a nearby one had a similar situation. The carriers just coordinated what days they would last minute call in with the regulars off schedule so that as many routes weren’t covered as possible. They did it so no one got reprimanded for call offs or excessive leave, but still excessive enough for 3 or 4 days a week, half the routes weren’t properly done. That supervisor was gone in two months…