Like many other 30-something women, I've started reading the latest treaty for the working gal, Sheryl Sandberg's Lean In. I'm now among the ranks of those who admire Sandberg's ability to leave the office on time and her gutsiness in contributing to a much-needed discussion on how North American's can better balance work and life so both men and women are better equipped to take on leadership roles if they want to. One area where this discussion is sorely needed is politics, an arena that Sandberg -- an advisor to former US Treasury Secretary Larry Summers -- largely ignores in her book.