There's a version of this story where we made a mistake and fixed it. That's true but incomplete. The fuller version is about what a structured evaluation process gets right, what it misses, and how the ground can shift under you even when you've done the work.
There's a particular kind of meeting that happens on mixed teams. Someone's opened a pull request, and two engineers are staring at the same diff with completely different facial expressions. One is confused. The other is quietly furious. Neither is wrong, exactly — they just have entirely different mental models of what the codebase is supposed to look like.
That's the drift I'm talking about. Not bugs. Not broken tests. Just two people who've been building in the same repository for months and have somehow ended up with incompatible ideas about what goes where.