Models are commoditizing. So are frameworks, eval harnesses, agent runtimes. What isn't and won't is the organizational muscle to put a model into a customer's actual workflow, automate tasks end to end, and navigate complex enterprises. This is a field guide to that muscle, told from inside the role that builds it. Six phases of an enterprise AI deployment, what's actually hard about each, and why the next decade of winners won't be the labs with the best evals.