You are not capable of always thinking positive thoughts. You are capable of always doing positive work, no matter what you are thinking.
A student asked if my job was to help athletes win. I said, "No, it's to remind athletes that win or lose their lives will be fine. #freedom
A mental coach's role in sport? To me, its not helping players win. It's reminding them that win or lose, there's a greater plan at work.
In coaching we must start to address causes not symptoms. Bad body language, for instance. It's a symptom of suffering. Look inside not out.