HRE,
I have the utmost respect for you but I must disagree on how much most high school kids race. Most of the US does not have indoor and dual meets are not the highest priority in track or cross for many schools. Oct-November and May-June are what the kids I see have to take seriously. In my experience it is quite possible to chop the mileage and keep the kind of quality Lydiard writes about in his lecture notes and have very successful seasons.
Yes and no. Indoor track is a pretty big deal here in Massachusetts for high school kids. And it can be a semi-big deal for post collegiate track guys. But more to the point I think is that if you run a high school schedule like we have here, rougly 12-14 xc meets and a similar number of both indoor and outdoor meets you're racing 30-40 times a year. You really don't need to do much anaerobic work if you're racing that frequently. If you're in college you might halve that number of races but you still never have an extended stretch when you aren't wanting to be near peak shape.
Anyway, Arthur sseemed to think along the lines I've mentioned because he created those "race week/non-race week" schedules that most people here seem to ignore as a response to people who race for months on end.