My new book goes into programming very little. I grudgingly decided to go very concise because it's either that or you have to go all out and a book that's intended to be straightforward, simple and widely accessible is suddenly cumbersome and less appealing... And my old book has more detail already anyway.
Kenny's book works fine from an athlete's perspective if that athlete is planning his own training. Certainly nothing about it that precludes an athlete from using the info.
The tier system is basically a way to select exercises smartly and in a way that helps ensure athletes are being exposed to the full range of movements in a balanced and orderly fashion. The book goes into quite a bit of detail regarding intensity and volume planning, etc. as well.
Kenn has a football and powerlifting background, but also incorporates Olympic lift variants.