"And yes, other than Mahon's middle distance people like Sara Hall and Anna Willard Pierce, his long distance runners don't do much track work."
Hmm... I think you should look at his athletes again... most of them are on the track: Anna and Jon Pierce, Uceny, Rhines, Hastings, Cragg, Scott Bauhs, Smyth, Sara Hall
Athletes not on the track: Deena, Josh, Ryan
Perhaps you should read what I wrote before you criticize it - I said the middle distance runners do track and every athlete you listed as being a track runner IS a middle distance runner (perhaps two or three of which have tried their luck with the half marathon or longer but are NOT long distance runners).