I don’t really have any experience with company and what goes on in the company, but from what I learned from the slides and the lecture video, I think the biggest arguments that the Quality Engineers have is with R&D department. It could potentially be with every other departments as well, because they are basically in charge of making sure that everything is done by the rules and everyone is following the rules. That is why, every company needs Quality engineers because it is potentially the most important job out there.