To produce the rankings, NFL Films sent each of the panelists, which included former players, historians, scouts, team executives and writers, a ballot of 261 names, including every member of the Pro Football Hall of Fame. The goal? To create a series akin to the Emmy Award-winning America's Game, the most popular and critically acclaimed show NFL Films has produced. More than 250 players from the modern and pre-modern era, including current NFL players, were under consideration by the panel for selection.