Enjoyable thread.
IIRC, Lydiard's earliest book (that I know of) was "Run to the Top," and in it he advocated *six* days per week of hill workouts during the hill phase, with a 20-miler on the seventh day for recovery! Bear in mind that he was including much more than the uphill work: the running on the flat at the top of the hill, striding out on a gentler (hence longer) downhill, and "wind sprints" once back down on the flats, before going up the hill again.
Anyone who did that total package (which worked out to considerable mileage, though a bit less than in the base phase) really wouldn't need a very structured set of track workouts in the following phase, because the basic *conditioning* that most people seek through track training would already have been developed. This makes it easier to understand AL's loosey-goosey approach to a lot of track work: He really seemed to see the goal of the track phase mostly as specific race preparation--hence his emphasis on "time trials" (a term of art that he used differently than most runners/coaches use it today).
As a side note, I remember reading about an East German runner (Haase? no, probably someone earlier?) who got hold of a copy of RTTP, painstakingly got it translated, followed it religiously, and moved from national- to international-class as a result. And there's no question that some of AL's medal-winners did the hill work most days, if not always six days, each week during that phase. Lydiard himself changed the schedule to thrice per week in "Running with Lydiard," saying that the recovery day between sessions helped; but with the NZ guys (including himself) that he'd coached earlier, more hill days certainly didn't seem to hurt!--probably because many of those guys (and the EG runner) were physically strong and had a background of years of substantial physical activity in a variety of sports.
In other words, Lydiard was a *coach*. He found what worked for himself and for a number of guys in his neighborhood, and wrote it up. Later he met and coached athletes from a wider variety of backgrounds; modified his schedules to something that seemed to work better for most of them; and wrote *that* up. I think any of the great coaches is a coach first, then a writer of schedules. That applies to jtupper as well: it wasn't just his "formula," but the flexible application of it TO THE PEOPLE HE WAS COACHING, that built the Cortland women's dynasty.