Bruce Arians has been coaching since he was 22 years old, but the day that defines his career didn't take place until 37 years later.
For Arians, Oct. 1, 2012, changed the trajectory of his life. A longtime NFL assistant coach, Arians had been passed over for dozens of head-coaching interviews while he groomed some of this era's greatest quarterbacks, won Super Bowls and prepared himself to take the reins of a team.
He was 59 years old that day, a Monday, when he was named the Indianapolis Colts' interim head coach while Chuck Pagano took leave to treat his leukemia.