Sometimes a specialist is the best choice, and sometimes a generalist is, depending on the stage and purpose of treatment. The saying, “If all you have is a hammer, everything looks like a nail,” can apply in clinical work. A provider who focuses on one particular disorder or treatment model may, at times, view the patient through a narrower lens. In the early stages of evaluation or treatment, a broader diagnostic perspective can be useful in understanding the whole person and deciding where intervention is most likely to help.