What reasoning does the high school baseball coach use to motivate the player?

The choice focusing on the consequences of not trying emphasizes a motivational strategy that highlights potential outcomes as a way to inspire action. This reasoning can be particularly effective because it taps into a player’s fear of missed opportunities or regret. By illustrating the negative effects that could arise from not putting in adequate effort, the coach creates a sense of urgency and importance around giving one's best effort in practice and games. This can serve to push the player to overcome self-doubt and encourage them to take risks and challenge themselves, reinforcing the idea that effort directly impacts success.

In contrast, while the importance of teamwork, evaluation of individual talent, and recognition of personal effort all play roles in shaping a player's mindset, they do not necessarily create the same immediate impetus for action. The focus on consequences can lead a player to reconsider their attitude towards participation and exertion, making it a powerful motivational tool.