Having gone through the SWEP book/training schedules I have noticed a discrepancy between the book contents and the training reported to have been done.
The schedules usually specify a surge long run, where all surges are done at MP - 10-15s, and, typically, either a long reps session or a hill session, plus, occasionally one run with some brisk mileage, with the rest of the week given over to steady running.
However, the text of the book mentions mixing hills + track work in the one session, refers to 5km length repeats being more important than short reps, and says you should be running at a brisk pace several times a week.
Also, interviews with those trained by him seem to indicate that the surges within the long run were all done at different efforts (i.e. shorter ones were run quicker, etc), and that there were pickups, etc, on a lot of the runs, fast finishes if feeling good, and so on.
Are the text and the latter paragraph correct and is it a case therefore that the schedules within the book are simply going for a safer approach by not recommending more frequent quicker running?