He says that football players play relatively few actual games in, say, hs. With 15 games a year (playoffs), and starting all 4 years, that's 60 times a qb would have live bullets.
Meanwhile, a hs bballer can play 60 games in one summer alone.
That's why we see so many bball players with very complete games at very young ages. But almost every qb needs at least 3 years of cfb before thriving in the nfl