You completely missed his actual point. Plenty of people produce books on general training principles and plenty of people produce genetic training plans. However his point is that there is little specific guidance in either research or literature on how to determine the *minimally effective* training for endurance athletes at each stage. That is: the least intensity and volume that can be applied at a given point to deliver a training benefit (so as to optimise “bang for buck” and minimise fatigue). No generic training plan (from your boy Don or anyone else) can determine that and his point is that even with access to athlete data and metrics the answer is necessarily complex and adaptive (bass on subjective athlete feedback and objective metrics/data)

@@XX-is7ps Thanks for reply but any training plans by Don (not MY boy by the way) or anyone else can only be an outline that athletes have to adapt to themselves. Therefore yes I agree there are no person specific training books for an idividual out there as this would be impossible. Still enjoying the pod cast with the miriad of different coaches theories on training.