Or someone who hires incompetent help. I wonder what the mistakes are. In some contexts, some mistakes that may seem innocuous to outsiders are unforgivable.

Yell at him in front of her and his superiors. That will take him down a few pegs.

Yeah idk how he thinks that’s normal to regularly yell & treat one of his important employees with such little respect. I also don’t know how and why she seems to regularly put up with it, allowing for a normalized toxic behavior environment to exist in their workplace. I do wonder, though, what the rest of the context is. Like, although obviously no one deserves to be yelled at, and he needs to clearly get his issues sorted out, just how regular and how basic are these mistakes that are being made.