hell, salazar coaches/coached Farah and would probably admit he could never run 12:37 or 26:17 if he tried to go after those records. they are focused on winning, and they are very good at winning medals and titles.
wake up and expand your frame of view
Is this a joke? You are the one that needs to wake up and expand the view. They are not good at winning medals and titles. They are good at winning against subpar competition. Most of these competitors can't even show up in 27:00 or 13:00 shape on a consistent basis. Further, Farah chases EASY medals instead of going for his best event the 1500m.