No not usually. I don’t get why a group (techies) that fancies themselves so rational can’t understand simple economics. Giving notice means I have leverage with a better offer no more less. The reason for that may be hard for the current employer to fix or not. Often it is not hard for them to fix, especially in larger organizations. And often coming with a better offer in hand is the only way to signal that. We can wank about ideal managers and all that but that is not how the world works.