It would be really cool if there could be an option to add shops without hiring a new vendor (or even remove the feature entirely, so all vendors are hired seperately from the staff tab). I want to be able to make changes to areas without having to hire a lot of new staff. I know it's silly, but I don't like firing staff, even if I just hired them when adding a building. It's also a personal challenge I like to do - everyone who comes to my zoo can stay
staff and old animals alike.