“When you come up with improved designs, take it upon yourself to test how they work. Formulate your own test plan and try them out under a variety of conditions. If the engineering process is so badly broken that changing the old designs will almost certainly make things worse, back off on how much you want to change in each release and work with your engineers to do more informal QA testing before the release is assembled.” (Bruce Tognazzini – AskTog) – courtesy of vanderwal