What is the Importance of Manage your Inner Game?
Achieving the perfect state of mind that allows you to stay focused and positive even in the most critical moments, which allows you to observe things others don't - the "being in the zone" - may be hard, but it is trainable.
Inner Game's main point is about balancing the negative thoughts that may occur in the situations and making sure these don't affect you. If you stop being able to take in positivity and are unable to remain focused because your inner dialogue is full of negative thoughts, it will impact your performance by, for instance, pointing all that can go wrong. This unbalance will take even the highest performer, and turn him into a poor performer.
Training your mind to manage these thoughts - your own inner game - will help you unlearn bad or harmful habits while enhancing your focus, pleasure, the ability of learning, and it will overall help you improve your skills.