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Many scientists will oversee a team at some point in their careers, whether it is one or two undergraduates doing a summer internship, an entire research group, or a department with students, technicians and postdoctoral researchers. Scientists are trained in their discipline, but are rarely, if ever, trained in how to manage and mentor trainees. All too often, this results in a series of trials and errors that are frustrating to both mentor and protégé.