Отличная цитата из https://news.ycombinator.com/item?id=16378840:

I have been through waterfall, agile, scrum, “agile”, “scrum”, kanban, to-do lists. Yet, I cannot point to a single style of project management as a silver bullet. However, I have come to realize the following conditions improve the probability of success: small teams made up of scary-smart accountable people, given a well-articulated objective (not solution) and are left alone without distraction. Short of this, you almost always fall in the trap of micro-management.