Over the years we have been asked, and have answered, nearly every possible question about QA. The one recurring question that no one can answer clearly is, “What is the right mix of QA engineers to development engineers?” We admit it: we don’t have a firm answer, either. The ideal ratio of QA to dev depends on several key factors, each of which may change on a project-to-project basis. For this reason, we recommend starting with a small team and scaling up or down as needed.