Especially in high school, an astounding amount of time, money, space, and personnel are dedicated to sports, and this does not just impact the athletes. In many schools the entire day is structured around the football team's practice schedule. Make school sports a truly after-hours extracurricular activity and remove their impact from non-participants, and I'd estimate you could see around 20% improvement time spent…
The last football funding discussion at the town level was whether to fund better helmets to protect against CTE or make the players' parents pay for it, so the town isn't seen supporting/encouraging brain damage to children.