I loved this story from "The 15 Invaluable Laws of Growth" by John Maxwell:
I recently read an anecdote about a meeting between Ted Williams and Boston Celtics coach Red Auerbach in the 1950s. As the two greats discussed their sports, Williams asked, "What do your guys eat on the day of a game?"
"What do you want to know for?" Auerbach replied. "You seem to be doing all right with what you're doing."
"I'm always looking for new ways to improve what I do."
Auerbach said of Williams, "He thought of the little things, what's important to being great. When you're great and you excel, some athletes would coast on that...Here's the best hitter in baseball, and he's trying to get another little percentage point."