Well, I have seen both sides of this story by now: at my previous job, we had lots of developers who are happy to throw the whole code base over board every two

Well, I have seen both sides of this story by now: at my previous job, we had lots of developers who are happy to throw the whole code base over board every two months as they discover a new test framework, spend a month on refactoring simply to satisfy a single dev‘s pet peeve for functional programming... it’s especially frustrating to watch as a team lead from another department, actually understanding what’s happening, but unable to do something.