I do not know the 5 factors of fitness book, but a number of us on the the chat thread are doing NRWL, and I for myself do see results. Also i find it kind of motivating to know where i am in the workouts, and to hear the others about it.
I started out with some books, including BFL, but I like NRWL a bit more i think. At least i see much more results from it, and it kind of oushes me to increase weifhts
10 week challenge - 7 WO per week - ended