I know times change. I did not see Coach Schott or others, unless by accident, during the summer. It was on us to lift. But by all means, vacation with the family, get a job, play baseball and, (unspoken), chase some tail.
Three weeks before the season started, team leaders organized "grass drills" - running camp. The Old Man had three metrics he looked to see what you did over the summer. Your bench, your squat and the mile. Skills had to be done in 6:00, linebackers in 6:30 and linemen in 7:00. Miss your time, do it daily until you make it. OH - that was with helmet.
Sure, we know distance running is not the best training, but it was his way of checking the oil.