What should the umpire-in-chief emphasize to both coaches and captains?

The emphasis on the need for good sporting behavior is essential because it sets the tone for the entire game and reinforces the spirit of competition. Good sporting behavior fosters respect among players, officials, and coaches, which is vital for maintaining a positive atmosphere during the game. By stressing this point, the umpire-in-chief helps ensure that all participants understand the importance of fairness, respect for the rules, and consideration for their opponents. This not only contributes to a better experience for everyone involved but also aligns with the core values of sportsmanship that are crucial in any competition.

In contrast to the other options, while scoring strategies and practice techniques are important aspects of the game, they do not directly address the conduct and attitude expected from players during competition. Equipment regulations, although necessary for compliance and safety, also do not focus on the interpersonal dynamics essential for promoting a healthy competitive environment.