Advice for the Treatment Coordinator (TC) – It’s all about selling. As a TC, you have a job description that encompasses many responsibilities. But if you had to sum them up in one word, that word would be sales. The TC either starts the patient or fails to close the case. When properly trained, TCs can close 90% (or higher) of all prospective patients (and parents) who present to the practice. How close are you to this target?