The really sad part is we have arrived to the point where things that should be common sense have to be governed by a sanctioning body. The simplest method is to trust the coaches to do the right thing and overall you can do this but there have been enough idiots out there to mean this can't happen. We have to be lorded over by a governing body.
The problem that needs to be solved first before you even think about moving on is "how does the governing body know the information is relevant"? No matter who counts pitches - umpire, coaches, parents, hot dog vendor, drunk guy who hangs out across the street - how does the governing body know that number is accurate. Let's say home book keeper, parent, 3rd string right fielder, etc..... has down for that inning 22 pitches for their pitcher. Visiting book keeper, parent, 3rd string right fielder, etc..... has 23 pitches. So who's right? How do you reconcile the discrepancy? How long does the game get held up while you figure this out?
Well you could always say the home team is the official count - then why is the visiting team keeping this record? They keep scorebooks for stats which is why you sometimes see that guy on the other team hitting .343 when he has a lot of "hits" that the SS didn't have a play on but he really did.
You could say if there's a discrepancy of one pitch you go with the higher number, if there is a difference of two numbers (home team has 22 / visiting team has 24) then split the difference and go with 23, if there is a three number difference (22 / 25) then go with 24 and so on. What do you do when the other team is having 2 or 3 pitch differences to the high end each inning?
This is like most other things - a governing body says they are doing something for the health and safety of kids then creates this monster that is a beast to deal with but if you buck the system pointing out it's flaws then you're chastised for not caring about kids health and safety. Nobody wants to be that guy but that's what you're left with.
It's like the old saying - "if it helps only one person then it's worth it". No it's not. If we are working our butts off but only helping one kid then we need to step back and try to figure out a way to help more and maybe all students.
End of the day we will be left to the character and honor of coaches and the diligence of players and parents to make sure kids are not overworked.