Final answer:
The head coach of each team is responsible for ensuring that his team is on the field for the mandatory three-minute warm-up period after halftime intermission.
Step-by-step explanation:
The question is about the responsibility of the head coach of each football team to ensure that their team is on the field for the mandatory three-minute warm-up period after halftime intermission.
The answer to the question is True. The head coach is indeed responsible for ensuring that their team is present on the field for the required warm-up period after halftime intermission.
Examples from the provided information might include how at University C, the game program includes a prayer from the team captain, but this does not exempt the head coach from the responsibility of ensuring his team completes the mandatory warm-up period.