Usher...like you, I am a HS coach. I am not an apologist for the Paavo system; I think it has major flaws. It does, however, have some "good" points. I spent some time a few years ago trying to wade through the junk they pass out at clinics; I found their material poorly organized and their presentation circular (minus the questionable pace charts, a description of the system can be condensed into a single page). Their clinics could easily be presented in an hour. Looking at examples of a season's workouts was valuable, however, and show at least a little logic and some redeeming features to the system.
Positives:
1.Progression on several levels(it uses a leveling system based on performance tests; this is a trait advocated by Frank Horwill, who designed the style of training Coe used throughout his career).Adjustments in quantity and speed are based on performance, experience, and having successfully completed similar workouts.
2. Individualization (Speed and volume).
3. There's a sequence that build from one cycle to the next: First "PPM runs" (basically, AT runs); then slow intervals (400's to start, with 4 min jogs - sounds like a Daniels rep workout); then pace, fast intervals, Etc.
From that standpoint, there are some sound principles at work. Pulse counts for recovery, individualized, progressive workouts (with at least some connection to reality) - these aren't bad things.
Negative:
1. The Pace chart system they use creates unequal workouts for different ability levels. These should have been done based on a percentage of the test time. If you use %of time as a guide, 4:30 milers are doing RELATIVELY easier workouts than 6:00 milers, who are running at a far higher % of max (which is what you get for saying "a minute slower than PR mile" for every athlete. Rewrking these would make the system sounder physiologically, and more productive.
2. A peak system unlike any other. The quantity and quality of workouts in the last week is imposing. Certainly unlike what most championship teams do throughout the country, Paavo has kids doing more - and faster - the last week than anywhere else in the cycle.
3. Race shocking. Enough said.
Honestly, there are a number of other systems out there that do the same things. I love it when people play that game of "look, I'VE got the SECRET training formula for greatness". Paavo is another example. There are some decent principles involved; in the hands of a good coach (like our esteemed colleague from Columbus North, IN), you could make this work. But there are simpler - and just as effective - programs out there. There are many roads to Rome; Daniels, Coe, Lydiard, Vigil, Bowerman...all are effective if you use them correctly.