A Thought Experiment
Imagine two men are stranded on a desert island. One is on one side, the other is on the other and they have no knowledge of the other's existence. Both are left with all the supplies they need and both have access to an airplane. Neither have any idea how to fly. Both want to get off the island.
After some days or weeks or months, both men get in their respective planes. They stare at the buttons, switches and lights. They contemplate what taking off would be like. They imagine themselves pilots. Still, neither has ever flown a plane, neither is a pilot.
One of them carefully looks through and tinkers with every component. He analyzes, and analyzes and analyzes. He thinks about it day and night but dares not to actually take off knowing that the universe of things he does not know is vast and his failure while not certain is at least probable.
The other castaway finds something that his counterpart didn't. He finds a telephone. The telephone only dials one number but that number is to a pilot. The pilot and the castaway talk about every component of flying, about operating the plane, about landing, about dealing with the unexpected. They discuss what it would be like to take off, to land, to get where he is trying to go. They try to game-plan as many scenarios as possible. In the end, the pilot tells him "you'll be flying this plane but I'll be there with you"
Eventually both castaways decide to go for it.
Which plane would you prefer to be on?
That is the value of coaching.