Changing Character Flaws

So there's a character sketch. There's a flaw. And there are plot ideas around the flaw.

But what happens when the flaw changes? What happens if your obsessive person becomes a hypochondriac? Or a pyromaniac? What if vain becomes boredom with life?

Take your character and change the flaw to something completely different, and look what that does with the plotline. Do you have a different story? How different?

How do characters make the story?