I worked at a company with dedicated scrum masters. They did little to nothing. One of them didn't even want to run the retrospective. He tried delegating it to

I worked at a company with dedicated scrum masters. They did little to nothing. One of them didn't even want to run the retrospective. He tried delegating it to a senior dev, who told him we should just skip it, and not even bother filling out the "mandatory" end-of-sprint feedback form. This, of course, would not be acceptable to the scrum master's boss so he was forced to actually do some work.