would take a long time to expand on this in sufficient details, because it's hard to understand unless you live it and see it. People very rarely speak up in meetings (silence is the norm, just like they were taught in school), and therefore you never get to see exactly what people feel or think about what you are planning to do. So the norm is that most people talk and exchange in other venues (usually in your back, in smaller groups - I don't mean this in a negative way, it's just what they are used to do). So when you are set to achieve something, it's a long road of 1:1s, drinks or informal meetings to get to know what they think, what they want, and how they can help you to get there. Multiply this by the number of stakeholders involved, and the politics at play between all of them, and you end up with a very slow and inefficient model to drive decisions and buy-in.