1. Golf is a mental game.
a. She had lost confidence in her caddy's judgement.
b. She scored better on the back 9.
2. She is still a kid.
3. Good luck finding another Caddy.
4. I would imagine "Johnny the boyfriend" is replaceable also. Good luck to him.
5. Sponsors should be looking hard at her behavior before signing her as a spokesperson.
6. Agent and or parents should give her a word of advice.