Over the next several weeks, HHR will be interviewing 20 and 30-something-year-olds in various careers in professional, amateur and collegiate sports to get a take on how they broke into their respective industries and to offer tips how ambitious sports-related job seekers might do the same. Today, we interview 23-Year-Old Sports Agent Darren Heitner, CEO of Dynasty Athlete Representation. Dynasty's clients include a number of prominent professional bowlers, college coaches, baseball p...