If you want to get good at tennis, you need to hit lots of tennis balls.

And while you’re hitting all those tennis balls, you can see where they go and try making various adjustments. What you can’t see is the arch of your back, the angle of your hips, where your feet are at the moment you hit the ball.

And so it’s helpful to have someone else who plays tennis watching you play.

That’s the value of a coach, and a mastermind group, an accountability partner. We can certainly learn on our own, but we’ll make more progress, and faster, if we have someone watching us play, giving us feedback.