You obviously haven't walked the halls of your typical government high school recently, have you? Your primary experience is with the automatons produced by the CYO football program.
You are wrong. Most government school programs have tried and tried, over time, to emulate the P/P's and 99% of them fail. The best they can hope for is that "once in a decade team", not reload year after year after year like the P/P's do. Most P/P's just don't have the socioeconomic hurdles the governments schools face.