Mostly this - McKinsey isn't hired to bring in a unique perspective, they're hired to paper up a decision that the person hiring McKinsey wants to make. They c

Mostly this - McKinsey isn't hired to bring in a unique perspective, they're hired to paper up a decision that the person hiring McKinsey wants to make. They charge a pound of flesh and give you a pile of research saying this is how to accomplish your goal, not here are the goals you should have considered.