Becoming an amazing golfer is not just about knowledge.
On a personal level, I've recently been working very hard on fitness, improving my core muscles and trying to improve my posture (in general - not just golf) and also relearning basic walking/running to become more energy efficient.
Looking at Manzella, I think there is a lot also in this area he could improve on. I would imagine that he is pretty strong in short durations but needs to work on flexability, and fitness/endurance.
Reading his story, I think Manzella isn't trusting himself and doesn't know how to clear his mind and is mentally chattering to himself.
How do you relearn basic walking/ running? Is it a technique change? or..?