https://www.uiltexas.org/files/athletics/manuals/sportsmanship-manual.pdf
A few bullet point excerpts from the above-linked official UIL Texas publication
(draw your own conclusions about the appropriateness of Briles as a leader of young high-schoolers):
Page 9: Behavior Expectations of the Coach
•
Exemplify the highest moral character, behavior and leadership, adhering to strong ethical and integrity standards. As coach, it is your responsibility to act in a positive manner to
show your athletes the proper way to conduct themselves in competitive situations.
...
•
Set a good example for players and spectators to follow.
...
• Be no party to the use of profanity, obscene language or improper actions, which include the verbal or physical abuse of participants, coaches, officials or spectators.
Page 12: Behavior Expectations: Officials, School Administrators ...
• Recognize exemplary behavior and
actively discourage undesirable conduct by participants, coaches and fans.
Pages 20-21: UIL Coaches Code of Conduct
• Trustworthiness - Be worthy of trust in all I do and
teach student-athletes the importance of integrity, honesty, reliability and loyalty.
• Integrity - Model high ideals of ethics and sportsmanship and always pursue victory with honor.
Teach, advocate and model the importance of honor and good character by doing the right thing even when it is unpopular or personally costly.
• Honesty - Do not lie, cheat, steal, engage in or permit dishonest or unsportsmanlike conduct
• Primacy of Educational Goals -
Be faithful to the educational and character-development missions of the school and assure that these objectives are not compromised to achieve sports performance goals. Always place the academic, emotional, physical and moral well being of athletes above desires and pressures to win
• Respect -
Treat all people with respect at all times, and
require the same of student-athletes.
• Advocate Honor -
Prominently discuss the importance of character, ethics and sportsmanship in materials about the athletic program, and vigorously advocate the concept of pursuing victory with honor in all communications.
• Good Character -
Foster the development of good character by teaching, advocating and modeling high standards of ethics and sportsmanship.
• Personal Conduct - Refrain from profanity, disrespectful conduct and the use of alcohol or tobacco in front of student athletes or other situations where my conduct could undermine my positive impact as role model.
• Role-Modeling - Be a worthy role-model, always be mindful of the high visibility and great influence I have as a teacher-coach and consistently conduct myself in private and coaching situations in a manner that exemplifies all that I want my student-athletes to be.