Probably yes wrote:
Maybe this is totally unfounded but I always wonder if Dathan will pan out to be a good coach. I'm under the impression that he ran himself into the ground and even after multiple injuries and "knowing better" he'd still go out and hammer sessions to the point that he'd reinjure himself. Seems like Parker is cut from the same cloth and falls victim to the same tendencies.
In the video Parker says Dathan called him that morning and told him to not go too hard the tempo so maybe Dathan has learned.
I don’t know anything about Parker or his training, just this video. I would guess he goes too fast too often. He should slow his paces down and do more mileage. It’s a very common issue amongst distance runners at all levels. “Look at these great workouts I’ve done,” then they bomb their goal competition.
It’s more exciting doing fast workouts but the real work is the big mileage and there are no shortcuts.