I enjoyed reading the dialogue on Mann studies and triple extension.
Here's the biggest thing i take from your dialogue, actually just confirms.
Scientiest put out studies with results and conlusions. As coaches, the ones actually out on the track doing the work, we know that the conclusions are wrong for the real world. We filter through their work and translate it into applied work with out athletes. Scientist are "text book", coaches are "street smart".
There is a physiology professor here on campus who constantly quotes me studies on there being no physiological improvement for runners beyond 60 miles per week. My response is always with something about why do elite marathoners running 150 miles a week. He may be right, but I've yet to read of a 2:10 marathoner only running 60 miles a week.
Coaches already know the answers, scientists, just have to prove it.
just my two cents on something.