Overview: With just four teams remaining in the NBA Playoffs, several players and coaches ponder their status as difference-makers at the highest level of basketball. Celtics’ All-Star Jaylen Brown strives to leave a lasting legacy in Boston, while Mavericks’ rookie Dereck Lively reflects on his teammates’ support after his mother’s passing. Lively’s coach Jason Kidd channels his time-honored connection with Dallas, while his counterpart in Boston, Joe Mazzulla, reckons with his first brush with NBA greatness.