Coaches are called coaches for a reason. To coach, or help athletes get better... Not stand around and talk while their students/athletes are getting hurt because they didn't show them how to breath when running, stretch correctly, or anything!
I mean who cares that you teach P.E. for K-3, and then 8th grade or what ever? The runners sure don't, all they want is to NOT get hurt so they can run.
So dear coaches... Do your darn job.