I think different coaches work well for different people in different situations. Personalities can mesh well together or not, training systems can work well for one and not as well for another, there are a lot of variables.
I would also echo what Mike said about working with blue chippers. There are a lot of very good coaches out there you’ve never read about in track and field news, because they don’t have the blue chippers. They are getting non-blue chippers to reach they’re ultimate potential.
The other big part of good coaching is probably what Mike is also alluding to- a great training group. Surrounding yourself with good athletes only elevates everyone’s game in which case LSU, Florida, South Carolina, USC type programs. Part of this comes down to the ability to recruit, which is part of a college coaches job also, along with many other duties (meet admin, travel)
Phoenix- sent you a U2U.