Coaching for Beginners

It seems like the type of person that might do best with coaching falls on this sort of weird opposite ends of the spectrum. Beginners, for obvious reasons, because they're beginners, probably shouldn't do the do it yourself stuff. And then on the complete opposite end of the spectrum, you have the very kind of very advanced elite folks. Is that exponentially harder to when you get way up there, the competition increases and the minutia can really matter a lot more?