Major league baseball runs a commercial during a change of innings that says, “Every good player knows the value of a coach.” And that’s true, but I think the opposite is true, too – every good coach knows the value of a great player.
A lot of good coaching is just staying out of the way, or just gently carving at the edges of things – because…they’re good. They don’t need a lot of, “This is how we do this.” In radio/TV/Voice acting, it’s more about “This plays to your strengths more,” or “It’s better if you stop here instead of adding one more thing.”
Coaching is a two-way street. Hard to do on your own.