Too Long; Didn't Read
You’ve created a model to predict which sales leads are likely to turn into convert into paying customers. The model is a true work of algorithmic beauty — its your Mona Lisa, but better since it actually does something useful. You have tuned the parameters and cross-validated the results, which means the only thing left to do is present your work to the company’s executives. “No problem” you think to yourself, you’ll just talk them through a Confusion Matrix and ROC curve and wait for them to lavish you in riches and praise.