Take Aledo for example. The ENTIRE district uses the same terminology and playbook, from their youth leagues through middle school and high school. It's 100% vertically aligned. A kid who plays running back at 7 years old learns the same plays and the same terminology as the 17 year old HS Senior running back. (Obviously simplified and modified for age).
There's a reason Aledo is frequently deep in the playoffs, and it's not because of school size. Good teaching is good teaching. Quantity has a quality all its own, but quality is quality.
The best band programs in Texas have vertically aligned curriculum from K through 12 too. They don't have kids getting to middle school unable to read music and not knowing what forte means. They have a designed elementary curriculum that is built upon in middle school and continued into high school. Want to sound like an honor band? Teach like an honor band program from top to bottom. Honor bands aren't made solely by their director, their feeders are just as important, which is why virtually EVERY honor band director thanks those people for their successes.