This is one of those ignoramus threads with a lot of false or misleading claims, many of them from rojo.
First, to rojo's points, I could not find proof that Magness was ever coached by Salazar. Magness at the point he came into contact with Salazar had not improved at all in college after being self-coached in hs and run 4:01.02 for the mile at the Pre Classic, but had impressed with the physiology stuff and so was hired as an assistant coach. (By the way, Magness hasn't done squat at Houston. That is not the greatest place to run distance but still, he has almost nothing to show for it at a school with a great sprint program under Carl Lewis and Leroy Burrell. There's one decent bragging point on his coaching page, Brian Barraza. That's it. Otherwise, he actually mentions an 8:19 3k and a 4:07 mile as bragging points for an athlete he coached! That's a high point in 7 years! Move over for someone who can do the job with Division I athletes!).
Second, you're absolving yourself of responsibility (as the former Cornell coach) when you say coaches don't have anything to do with injuries, just as you're doing when you say that talent is more important than coaching and that, to use your example of Merber laughing at Hunter for hyping up 3 minute intervals as coaching genius in Tinman, all the coaches give similar workouts. Great coaches on the high school and college levels make programs great and great professional coaches help their runners win medals. Politically speaking, Sean Brosnan, like his fellow Trumpers, is a traitor to this country's democracy, in my view, but as a coach, he's done incredible things with a program that had never had any decent results before, and most of that was not through transfers. Same with the Hunters. Same with Tinman with his high schoolers. Same with Mike Smith and Mark Wetmore, who both have built multiple national championships on guys who didn't run that fast on the national level in high school (look, for instance, at Pierce Murphy(?) at Colorado or Abdihamed Nur (4:28/9:27?) at NAU).
Runners get injured all the time, but coaches can very easily get athletes injured much more often than others by, among other things, not doing preventive exercises, giving them too big a jump in mileage or intensity as freshmen, doing too much speedwork like high school football turned track coaches.
Finally, Harrison is not just a so-so, middle of the road prospect, to the guy who said otherwise. He is the sophomore mile record holder, and that is a record that has been held by Jim Ryun and Alan Webb. Harrison got injured doing something dumb but it had nothing to do with his coaching. Where his coaching could have gotten him injured was that crazy, hero workout he did a few months ago, and sure enough his next performance was down, but it didn't so don't blame his coach.