The right hand and clubface work in harmony with your left hip to get the club on the ball.
Practicing with your right hand only and swinging independently of your shoulder teaches you to swing the arm and take the tension out of the shoulder socket.
It is imperative to grip the club primarily in your fingers and not in the palm of your hand. Mastering your grip is paramount to having the most leverage and strength in your hands.
Mike works with Danie on fairway bunker play and getting the ball in the air. Drawing a line in the sand is a great drill to figure out ball position and setup.