Given ML is here to stay, and growing in complexity by the day, it has become now critical that we think deeply about how to properly align our models with human interests. Doing this correctly requires a cultural shift in the way most organizations approach the model development process. Traditional metrics like F1, accuracy, or ROC on held-out test sets are woefully inadequate indicators of alignment when considered on their own. However, with the right tooling and a clear alignment framework, if we apply the principles of TDD (test-driven development) in a collaborative and transparent manner to ML development, we can not only build more performant models with greater velocity, but also instill far greater confidence in the models we are integrating into human lives.