There are a lot of actions happening in the company, by people. People are just faces and never judge people or try to classify people. People keep growing or changing. Just keep seeing their actions and make remarks about actions, never people. Eventually, accountabilities are defined by groups of actions or directions of actions which are needed and they are grouped in such a way that logically it makes sense that since they are interrelated, it’s easier to find in a single person or a single person can grow to doing those set of actions defining a role for accountability. If they are not able to do all such actions as a collective single individual, either they are in the wrong seat or organization has misjudged all such action capabilities can be one individual and need to remove or divide them into more grouped accountability or roles. Whatever you do or practice, remember always to give direct feedback about the actions of people (oh, and never miss giving feedback) and never to the character of people or generalizing a human.