Sprinting can be divided into three phases: Acceleration, max velocity, and speed endurance. In football, since most players achieve max velocity at 30-40 meters (and those are the one's that are trained properly), you are typcially looking at teaching them how to accelerate with proper mechanics, change direction, etc.....However there is nothing that is done in the weight room that can simulate the muscular contractile velocity of a full sprint. Sprints bring weights up, not the other way around. That last statement also assumes were not talking about little Johnnie that weighs 135 and squats 115. Buddy Morris, with the Arizona Cardinals, and Tom Myslinski, Jaguars, once said train your linemen like throwers (track), and your skill like sprinters in track. As everyone knows speed kills, and no one cares what your 1 rep max in a lift is come game day. The pure weightlifting community is usually misguided and not informed enough to realize that if you only lift between December-April until spring ball starts, then you lost out on a potential 50-70 sprint sessions that could enhance the overall athletic development of your players.
Linemen typically covering distances of 10-30 yards in different starts. Big Skill 10-50, Little skill 10-100. The thought of you lift weights to get faster is very antiquated and outdated. The off-season provides you a great opporutnity to lift weights yes. Lift weights to add muscle mass, and to obviously get stronger. However, it also allows you the chance to teach proper sprinting mechanics, teach proper change of direction mechanics related to the players position. It is all about balnce, and also all dependent on where you are in the calendar year of training in preparation for your season.
Let's note this too. Sprinting is only useful under full recovery. If your players are doing sprints where they are not at 95% or higher each rep of their best then it is essentially useless. So if a player is breathing heavily during a "sprint session" you are not doing sprints, and I don't know exactly what you would label that as. If you have your players do 10x30 yard sprints, then a typical rest between reps is 1:30-2:30 minutes, not 30-45 seconds. Just like if you had your player attempt a one rep max on something, his next attempt wouldn't be until about a 4-5 minute rest.
Let's note this too. When attempting a 1 rep max in WL there is no set time that you have to achieve that lift. As long as the bar is moving in the positive direction it could take as long as the player takes to grind it out. But there is the quandry, we are talking about Weightlifting and speed, when the two true max attempts (lifting 1RM or one full out sprint) are complete opposite from a motor recruitment and muscular regime perspective.
So yes, weightlifting is important of course, strength is important, of course, but there are a myriad of other qualities (max velocity, acceleration, reactive-elastic qualities, mobility, intelligence, speed reserve, aerobic capacity, etc.....) that enhance and create a quality football player. Each position has it's own qualities that you must focus on. Always look at the actual competition sport, football, not general things like weightlifting.
To answer the question though track is the closest thing to football that a high school offers. Unless you have rugby or lacrosse. Florida is only one of two states in the US that has the clean and jerk as a competition exercise. Everyone else follows the standard powerlifting lifts. Squat, bench, Deadlift. The jerk transfers zero to the development of a football player, and puts unnecesarry stress on the shoulder joint that a football player doesn't need.