I hate to use this as a metaphor, but making movies is kind of like going to war. It's not - but the stamina required and what it takes to tell a story that is this big in scope, you need a general that will bring out the best in you.
No very deep knowledge of economics is usually needed for grasping the immediate effects of a measure; but the task of economics is to foretell the remoter effects, and so to allow us to avoid such acts as attempt to remedy a present ill by sowing the seeds of a much greater ill for the future.