Most managers have two default tools when they need something to happen: tell people what to do, or escalate to someone who can. Direct communication and the chain of command. Both have their place. But if they are your primary or only tools for getting things done across an organization, you have a problem. Not because they don't work, but because they work less and less the higher you climb and the more complex your environment becomes.
The managers and project managers who consistently get things done are not the ones with the biggest title or the loudest voice. They are the ones who understand that in most modern organisations, influence is the currency that actually moves things. Directives produce...