Two families, five kids, 92 parent years...Mary Dell Harrington and Lisa Endlich Heffernan are the voices behind Grown and Flown where we reflect on the entire arc of parenting from the vantage point of two experienced moms. We look at the transition in our children's and family's lives through the middle school, high school and college years. Mary Dell has a MBA from Harvard Business School and worked at NBC, Discovery, and Lifetime. Lisa has an MBA from the MIT Sloan School of Management and worked as a Wall Street trader before becoming an author of three books including New York Times Business Bestseller, "Goldman Sachs: The Culture of Success." You can follow them on Twitter, join in the conversation on Facebook and Pinterest, or visit at Grown and Flown.