"The fact is coaches are not going to do something stupid that will cost them to lose a player for the fall."
See Guilford Co., particularly Grimsley HS.  Not all coaches are created equal in mind or thought.
Good point. The situation in Guilford County was a very unfortunate occurrence. There was no excuse for the coaches at the schools that were involved to not have known better. Any HC of any sport has to know the rules. There is no excuse for not knowing what the rules are. Period. It is also the AD's job to make sure things like this do not happen. A couple of positives will come from this. First the NCHSAA needs to take another look at how this rule impacts the playes. Put all the punishment on the coach, AD and Principal. I will be willing to bet that these rules will be well understood by the powers that be at each HS in GC as well as the rest of the LEA's in NC.
I remember a day when the only summer workouts were boys working the 
tomato fields or tobacco fields.  The QB and his receivers might get 
together a few nights a week and fling a ball around in the outfield of 
one of the rec park softball fields.
Coaches were not around.  The 
weight room might have been open for lifting, such as it was.  One could
 argue that locally in our community that the teams of that era were 
more successful than today's player.
I was around in those days as a player and coach and I will have to disagree that the teams of that era were better. There is no comparrison between the players then and the players now. Todays players (because of the strength, agility and speed programs) are far superior than the players of that era. 
I have read the other threads on topic and have some agreement with 
Godevilsgo about too much summer activity. My son will be a junior next 
season.  While I want him to develop his skill as much as he can, I also
 want him to have the experience of working a job and earning a 
paycheck.  While my family income is such that we don't need him to 
work, he needs to begin to learn the basics of earning an income and 
budgeting for the things he wants.  We are no longer a football crazed 
community where some booster will give a boy a job because he is on the 
football team and bend over backwards to make sure he can get to 
practices and team functions.  I have seen some schools who go stark 
raving looney with 7 v 7 match ups multiple days per week all summer.
My kids had part time jobs on weekends and during the summers as well. I encouraged them to do this for the same reasons you stated. But, I still say that the kids can easily work in the summer strength, agility and speed programs including the 7 on 7's without any problems if they are not required to be there every day which to me would create burnout.We only opened the facilities on Mon., Wed., and Fri. AM only. Tues. and Thurs. late afternoons was for 7 on 7. The linemen had those days off.  My own kids did it and had all the time they needed to do everything else they wanted to do without any problem. I will say that they did not like the 6:00 AM - 8:00 AM workout times and then having to be at work at 9:00 AM at the lumber yard working for their uncle. We also had 7 on 7's on Tues. and Thurs. unless we went to a college for an all day Fri. event. Even then the OL and DL coaches stayed back and opened the weight room for the linemen. If we did this we did not do the Tues. and Thurs. 7 on 7's. I will agree that some coaches go over board on these. I think that coaches need to understand that kids having time off a couple of times during the summer is a good thing. That is why I have no problem with the 2 dead weeks in NC. 
When we had Spring Practice we had it around the same time period that NC is having theirs. I would then tell my kids when we finished Spring Practice that I would see them the first of July and we would work up until the week before the beginning of Aug. practice. This week was an off week for them. I would not allow them to even come lift weights that week. If they did their running they did it on their own. I was surprised that the majority of them did the workouts on their own either at home or at a gym.  
I appreciate all the input here from you Rams and btango particularly.  
It seems to me that the coaches association forming a more active and 
united front is the first, basic step that needs to occur.  Until they 
get to singing out of the same hymnal, their multiple thoughts on what 
to do work against them.
I appreciate parents like you who have a  huge interest in what their kids are doing and your opinion certainly means everything to me. I agree that the coaches need to unite on this issue. I liked the full contact spring practice because we got a lot accomplished in the 12 days we had it and then the kids were free for a couple of weeks. I was fortunate in that we had all of our players in strength, agility and speed development classes the entire time they were in HS so we were able to get a lot done in class and we did nothing after school until Spring Practice. We did not get them all because we had several kids playing spring sports who were involved in state playoffs and I was their biggest fan. To me it gave the second and third string kids at their position a chance to get better and this helped the team in the long run.
I apologize for the long post but sometimes when I start writing I have a difficult time stopping.