Does a project needs a QA person? It depends. I had projects where QA did offer negative productivity and projects where we spends weeks because we didn't have

Does a project needs a QA person? It depends. I had projects where QA did offer negative productivity and projects where we spends weeks because we didn't have QA. I believe the problem is that we do not have good QA professional. Being QA is more the applying a process is understating the projects needs, UX and the process, and being able to delivery on all fronts.