CB is also extremely easy scheme wise. There are only so many things you can do as a CB. Man, cover 2, cover 3, cover 4, blitz then various techniques(leverage, press, off, etc) on top of that. There are a lot of different defensive schemes but a CBs individual role is pretty limited as far as quantity of things to do. They aren’t really ever used in disguises or anything. It can be made to work for sure.