It is important to understand that chart-building is merely one step in the process of effectively communicating data. Let's focus this discussion on going beyond default settings with a few quick tips to more effectively share that story.
Building a Gap, or Dumbbell, Chart in Tableau
Week 1 2016 addressed a table published by FiveThirtyEight.com. (Baseball, FiveThirtyEight & Tableau all in one place; how did I not know about this in 2016?)