In 2013, the Buffalo Bills hired Doug Marrone from Syracuse University to be their head coach. Marrone had an offensive background with the New Orleans Saints, but as an offensive lineman, he had never called plays. He brought with him his young offensive coordinator from Syracuse to be the play-caller in Buffalo and coordinate the offense. That young OC was Nathaniel Hackett, and a decade later, he’s not the head coach of the Denver Broncos.
Hackett coordinated the Bills offense in 2013 and 2014 before Marrone opted out of his contract following the death of Buffalo’s owner, Ralph Wilson.