Joe Mazzulla's approach as the Boston Celtics head coach has raised eyebrows, especially regarding his skepticism towards rookies. Rookie Baylor Scheierman, who is finding his footing in the NBA, shared Mazzulla's candid admission about his reluctance to play first-year players during a training camp conversation. Despite a slow start, Scheierman exhibited promise, particularly in shooting and passing, earning Mazzulla's trust as the season progressed. With key player Jayson Tatum's indefinite absence, the rookie's responsibilities are expected to increase significantly, challenging him to rise to the occasion.