Unfit team, unfit org processes, unfit infrastructure, unfit codebase, unfit business model. They don't start happening all at once, but it takes just one of these to corrupt the others in time. Theoretically a good team could have the power to throw everything away and start from scratch, but very few teams can be proud of such feat. Without the right people, incentives, mindset it's almost impossible, because no one has the guts and energy to take responsibility if there is no hope ahead. And passion, it's so important, but very few teams are proud of having passionate people, regardless of age