College and High School football both have similar rules when it comes to protecting the QB and defenseless players.
I'm also very involved in football (PM if you want more info. Would love to pick your brain with your experience actually), and have been my whole life. Yes there's been a lot of changes to rules since we played. But a lot of that is good imo. Guys get bigger and stronger and faster every year.
I also hate the way NFL games are officiated. They need to make serious changes. But I still watch. Watching bad football on Sunday's is a lot better then not watching football at all. The NFL has never been a league full of pillars of the community. It's just different now because of 27/7 social media, etc.
The NFL is way too much with enforcing rules. Let the guys play football. We also don't have the cry babies like the NFL has. Nor do we allow all of this silly end zone dancing and celebrating. We have a penalty for silly look at me stuff like this. I would have been fired on the spot here in Houston had I allowed a kid to take a knee during the National Anthem too. We even still have a team prayer in the locker room before the game. But the kneeling is what did it for me. I served in the military along with everyone on both sides of my family so that kind of behavior is a no go for me. The NFL could have stopped that but they chose not to. But that goes back to this attitude many have in the NFL that they are bigger than the sport or the team. Not the concept we teach. I think the NFL needs to pull their heads out of their asses and get back to playing football, entertaining and not allow any more political statement during game time. I know Vince McMan will not stand for that kind of disrespect.
We have kids that play because the love the sport. When I played HS football, very few guys were over 200lbs. Now almost ever O-lineman is around 300lbs. Its not unusual to see skill kids running 4.3 to 4.2 40's. Amazing to see that kind of talent at such a young age.
I have no problem with the off field behavior in the NFL. These people are not role models they are athletes and most come from some pretty bad situations. The public puts them on pedestals. I have had to go get so many kids out of jail just so they could be at practice. We are the only hope of keeping most of them out of prison.
Anyway, I coached O-line most of my career, coached a few years of D-line and some linebacker. I coached D-I AA for a period of time and then moved to high school where the pay was better. I spent the majority of my coaching years here in the Houston area. I was also usually the team off-season strength coach. I have run old school offense and defenses and the spread stuff. Most here do noting but spread offense with zone blocking. Defenses are usually a 4-3 but I have run some 4-2 and 3-5.