It's tough to put Shanahan in the No. 2 spot and out of everyone on this list, he likely has the best chance to get into the Hall of Fame.
The best coach in Broncos history without any doubt, Shanahan's 170 career victories are tied at No. 13 on the all-time head coach wins list. But what puts Shanahan ahead of most, including guys like Reeves, is the two Super Bowls he won with the Broncos in 1997 and 1998.
That Broncos team is among the most complete in league history. Shanahan's offensive prowess always gave the team a chance to win and that helped earn him respect amongst his peers. He was rarely overmatched in those years.
His shortcomings in his personnel decisions helped lead to his ouster in Denver, but he is still widely regarded as the team's best coach ever. He was also put into the Broncos' Ring of Fame in 2020.
He will have a great chance to gain entry into the Hall of Fame. His son Kyle, the current head coach of the San Francisco 49ers, would make for a great presenter.