I only meant developers don't necessarily need it to organize their team. Or at least they could get away with something simpler. But organizing the team is only half the battle. Or really less. Knowing what to work on and how to prioritize is more important. Especially if you're managing multiple products and projects. Developers may not need it to write code but they absolutely need it to manage expectations as much as managers need it to set expectations and track against goals and budgets.