Why writers procrastinate

I've just sent Megan McArcle's article, "Why Writers Are the Worst Procrastinators," to my Kindle. Tell me if it's any good, I'm going to check it out later.

Most writers were the kids who easily, almost automatically, got A's in English class. … This teaches a very bad, very false lesson: that success in work mostly depends on natural talent. Unfortunately, when you are a professional writer, you are competing with all the other kids who were at the top of their English classes. Your stuff may not—indeed, probably won't—be the best anymore.