Some coaches deviate from their workouts/training plans, some coaches don't.  It would be great for a coach if he could normalize his practices so that each of his runners trained the same (did the same amount of mileage, participated in the exact same training progressions, etc.) and, in doing so, got positive results that reflected this training.  But some coaches realize that doing so doesn't produce results on an individual level.  The following coaches, for example, take each individual runner's needs into consideration and, in turn, adjust their training regiments to supplement positive results for each athlete:

NAU coach, Eric Heins, talks about adjusting mileage expectations for each individual runner on the team.  He understands that each individual athlete has to find that "sweet spot" in training that allows him/her to be successful.  
Wisconsin coach, Mick Byrne, discusses mileage training expectations for his whole team and for individuals such as Mo Ahmed and Reid Connor.  
New Mexico coach, Joe Franklin, goes into depth about adjusting training regiments for individuals based off his personal understanding of each athlete's lifestyle and training habits.  He uses his ability to read an athlete when doing so, and he gives some very insightful examples where he actually holds individual athletes out of practice for various amounts of time.  

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