From what I can tell, Bart’s father was an asshole. He wanted to make Bart “tough” so he was mean to him. Growing up in hardscrabble Alabama was bad enough, but having an overbearing dad made it worse.
At age 12, Bart’s younger brother Bubba cut his foot after stepping on a dog bone. Within 2 days he was dead of tetanus. Bart may have felt that his dad was partly responsible, for not taking Bubba to a doctor. For whatever reason, after Bubba died, Bart never felt close to his father.
A guy like Bart Starr would never get near a training camp in the NFL today. He spent most of his college career healing from back troubles, and presided over the worst season in Crimson Tide history, a 1-10 season in 1955. As it was, he barely got drafted. He was the 200th player picked, in the 17th round of the draft. It was Vince Lombardi who made Bart into a quarterback. Ironically, Lombardi was the same kind of tough guy that Bart’s dad had been. He didn’t listen to excuses.
Starr certainly didn’t have gaudy stats. He never threw more than 16 TD passes in a season. But he was able to win the big games, and will always be remembered for winning the first two Super Bowl games.