What is that giant chart ESPN’s Sean McDonough is holding, and where did it come from

[Belsnickel]

I thought some people may be interested in this. I go to church with this guy and his wife, and work with his wife often at JMU. What's funny, is I didn't know about this until this was in WaPo.

https://www.washingtonpost.com/news/dc-sports-bog/wp/2017/10/23/what-is-that-giant-chart-espns-sean-mcdonough-is-holding-and-where-did-it-come-from/?utm_term=.c37e06c74420