Two years ago, Anne-Marie Slaughter wrote a provocative essay in The Atlantic called "Why Women Still Can’t Have It All." The piece, which sparked a national debate about the impossibilities of work-life balance, stressed that unless a profound change in mind-set occurred at the highest levels of business and government, professional women are basically screwed. The stats bear it out. Women account for just 5 percent of Fortune 500 CEOs, while 3 percent of executive creative directors at ad agencies are female. It’s a pretty sad state of affairs.