Janet Napolitano for the Supreme Court?

Sandy Levinson at Balkinization says:

"Although I strongly hope that the President will appoint at least one person from the world of elective politics--Jennifer Granholm or Janet Napolitano easily qualify--I also assume that at least one of the coming two or three appointments will stick to what has become the custom of drawing on the existing bench."

Janet Napolitano? It says something about Obama, too, that he has short-listed her.