Serenity is knowing that your worst shot is still pretty good.
Nobody ever heard Jack Nicklaus say "I don't know" about anything.
When Nicklaus plays wells well, he wins. When he plays badly, he finishes second. When he plays terribly, he finishes third.
I don't think anywhere is there a symbiotic relationship between caddie and player like there is in golf.
In golf, 'close' is like the north and south rim of the Grand Canyon.
There are plenty of guys who played great golf, had great careers and only won a few majors.