AdvertisementOpinionSheryl Sandberg Is Right: Single Moms Are The Original 'Leaner Inners'May 11, 2016Lori GottliebfacebookEmailFacebook COO Sheryl Sandberg wrote online recently: "Some people felt that I did not spend enough time writing [in my book Lean In] about the difficulties women face when they have an unsupportive partner or no partner at all. They were right." Sandberg's husband, Dave Goldberg, died a year ago. (Getty Images)