I have never worked in the industry. With my very limited related experience, I think the best set up of QMS depends on the size and function of the company.If the company is very small, it’s ineffective to have such a big quality management system. For example, as @gp232 have mentioned about the QA department consisting of 2 people, as long as it proves to be effective, it would be the right fit. As the company grows, I’m sure adjustment would be made and the QMS has to expand.