When it comes to the unknown territory of having a baby, moms-to-be have nearly unending resources to plan and execute a healthy pregnancy and navigate those first months and years as a parent with confidence. New dads? Not so much. They want to get in the game too, but, says Super Bowl champion Benjamin Watson, "I could find clearer direction for putting together a baby swing than for taking care of a newborn child." The New Dad's Playbook is every...