FILE - In this Dec. 19, 2016, file photo, Carolina Panthers defensive coordinator Sean McDermott walks across the field before an NFL football game against the Washington Redskins, in Landover, Md. A person with direct knowledge of the decision tells The Associated Press the Buffalo Bills have reached an agreement to hire Sean McDermott to be their next head coach. The person spoke to The AP on the condition of anonymity because the Bills have not announced the decision. The deal was reached Wednesday, Jan. 11, 2017, shortly after the Bills interviewed McDermott for a second time in eight days. (AP Photo/Alex Brandon, File)
FILE - In this Dec. 19, 2016, file photo, Carolina Panthers defensive coordinator Sean McDermott walks across the field before an NFL football game against the Washington Redskins, in Landover, Md. A person with direct knowledge of the decision tells The Associated Press the Buffalo Bills have reached an agreement to hire Sean McDermott to be their next head coach. The person spoke to The AP on the condition of anonymity because the Bills have not announced the decision. The deal was reached Wednesday, Jan. 11, 2017, shortly after the Bills interviewed McDermott for a second time in eight days. (AP Photo/Alex Brandon, File) Credit: Alex Brandon

The Buffalo Bills and Denver Broncos became the first NFL teams to officially hire new head coaches this season, as both franchises announced their picks to the media Wednesday.

The Bills are putting their faith in Sean McDermott to replace Rex Ryan, who was fired two weeks ago for failing to deliver on his bold promises to build the Bills into a bully.

The 42-year-old has no previous head-coaching experience and spent the past six seasons overseeing the Panthers’ defense.

McDermott

Meanwhile, the Broncos hired Vance Joseph as their head coach in an announcement made in twitter.

He was on Elway’s short list when Kubiak, 55, stepped down last week over health concerns after Denver (9-7) missed the playoffs a year after winning Super Bowl 50.

The 44-year-old ex-Colorado quarterback, spent last season as Miami’s defensive coordinator after building a reputation as one of the league’s top secondary coaches.