I will say that private schools -- which in many cases have far fewer students to draw from than the public schools -- have long played more games in a shorter time span. And they often have far greater distances to travel for away games. I should think their example of how to manage it (e.g., split Saturday doubleheaders) is there for anyone to emulate or, if they prefer, not.
But again, I can't see how this works unless you're giving more guys time on the mound. And while that means more guys get their shots, to me it also means that many games will be played with the pitching being much more hittable (or yielding more walks, or both) and therefore, with a lot more runs being scored.