My son's high school coach was definitely old school. Our school district had tougher rules than the state association. The coach had tougher rules than the school district.
The state had eligibility rules relating to the last quarter. Our school district had eligibility rules relating to last week. If a player failed a test or failed to pass in homework. He was warned on Friday he had until Monday at 4pm to remedy the situation or be ineligible until the problem is resolved. The coach's rule was you're ineligible all week. No one ever missed a game or practice.
Was this a gnarled, old, crotchety coach? No. He was in his mid thirties then. He was a rising star assistant coach from a top program in the state when he was hired as head coach. He learned from a coach who expected two things from his players; success on the field and success after high school. This team was so self disciplined they could run their own practices without screwing off.
Hopefully people understand the connection between team rules, the demands of a coach and self discipline and success after high school.