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John Elway and Gary Kubiak are surrounded by receiver's legs during passing drills in Greeley Tuesday, Sept. 1, 1985.

Injured Denver Broncos quarterback John Elway, left, listens to Broncos starting quarterback Gary Kubiak, right, during the first half of Sunday's NFL game in Pittsburgh on Oct. 23, 1988.

Gary Kubiak watches a workout in Greeley with coach Mike Shanahan and John Elway in 1995.

Gary Kubiak returns to the Denver Broncos' practice field and lots of questions about his trip Wednesday after his interview for a head coach position in Cleveland.

Gary Kubiak, then Denver Broncos defensive coordinator, listens to a question at a news conference Tuesday, Dec. 29, 1998, at the Cleveland Browns' training facility in Berea, Ohio, in this Dec. 29, 1998 photo. Following the Broncos AFC championship win, offensive coordinator Gary Kubiak said he will decide "within 24 to 48 hours'' whether to become head coach at the University of Colorado.

Baltimore Ravens offensive coordinator Gary Kubiak reacts during an NFL football game against the Cleveland Browns in Cleveland.

Denver Broncos offensive coordinator Gary Kubiak listens intently to wide receiver Ed McCaffrey during training camp practice at Dove Valley in 2003. (Andy Cross, The Denver Post)

Denver Broncos WR Jerry Rice listens to WR coach Steve Watson (L) as Coach Gary Kubiak listen in during the afternoon practice at Dove Valley in 2005.

Gary Kubiak talks on the sideline with Denver Broncos quarterback Brian Griese, Steve Beuerlein and Jarious Jackson during the second quarter of a game between the Denver Broncos and the Arizona Cardinals at Invesco Field at Mile High in 2002.

Offensive coordinator Gary Kubiak radios info from his play list to assistants and camera stands for video recording during practice at Greeley in 2002.

Denver Broncos assistant coach Gary Kubiak looks on during practice for playoff game at Dove Valley in 2006.

Houston Texans head coach Gary Kubiak talks to his team following practice during Texans training camp Sunday, July 30, 2006, in Houston.

Houston Texans head coach Gary Kubiak looks on during the first half of an NFL game between the Kansas City Chiefs and Houston Texans at Reliant Stadium on Aug. 12, 2006, in Houston, Texas. Houston won 24-14.

Denver Broncos quarterback Jake Plummer talks with Gary Kubiak after the game between the Denver Broncos and the Houston Texans at Invesco Field at Mile High in Denver on Aug. 27, 2006.

Former Denver Broncos quarterback Tim Tebow gets a hand shake from Houston Texans head coach Gary Kubiak, right, after leading the Broncos to a 24-23 come-from-behind win over the Houston Texans on Dec. 26, 2010, at Invesco Field at Mile High in Denver.

In this Dec. 27, 2009 photo, Houston Texans head coach Gary Kubiak walks the sidelines during the second quarter of an NFL football game against the Miami Dolphins in Miami. The Texans have signed Kubiak to a contract extension that runs through the 2012 season. The Texans went 9-7 in 2009, the franchise's first winning record. Houston is 31-33 in Kubiak's four seasons, though the team is still seeking its first playoff berth.

Baltimore Ravens quarterback Joe Flacco speaks with offensive coordinator Gary Kubiak during the first quarter of a game against the New Orleans Saints at the Mercedes-Benz Superdome on Nov. 24, 2014, in New Orleans.

Baltimore Ravens offensive coordinator Gary Kubiak walks on the field during NFL football practice, Wednesday, Dec. 31, 2014, in Owings Mills, Md.

Baltimore Ravens offensive coordinator Gary Kubiak speaks at a news conference after NFL football practice, Wednesday, Dec. 31, 2014, in Owings Mills, Md.

Broncos offensive coordinator and quarterbacks coach Gary Kubiak watches Bronco quarterback John Elway during pre-game warmups at Pro Player Stadium the Sunday before the start of Super Bowl XXXIII in 1999.

Denver Broncos offensive coordinator Gary Kubiak laughs during training camp at Broncos headquarters in Denver, in a Saturday, July 30, 2005, photo.

Denver Broncos general manager John Elway, left, smiles during a press conference introducing Gary Kubiak, right, as the team's new coach on Jan. 20, 2015, at Dove Valley in Englewood. Kubiak became the 15th head coach in franchise history.

Denver Broncos general manager John Elway shakes hands with head coach Gary Kubiak as team president and CEO Joe Ellis looks on after a press conference at Dove Valley on Jan. 20, 2015, in Englewood. Kubiak became the 15th head coach in franchise history.

Denver Broncos head coach Gary Kubiak talks with Denver Broncos quarterback Trevor Siemian (13) with seconds left in the game during the team's loss to the Kansas City Chiefs 33-10 at Arrowhead Stadium on Dec. 25, 2016, in Kansas City, Mo.

Denver Broncos head coach Gary Kubiak, offensive coordinator Rick Dennison, quarterback Paxton Lynch (12) and quarterback Trevor Siemian (13) huddle during a time out during a slow first half against the Kansas City Chiefs at Arrowhead Stadium on Dec. 26, 2016, in Kansas City, Mo.

Denver Broncos head coach Gary Kubiak looks over the play chart against the Jacksonville Jaguars during the first quarter of a game at EverBank Field on Dec. 4, 2016, in Jacksonville, Fla.

Denver Broncos head coach Gary Kubiak stands on the field before the first quarter of an NFL game at Sports Authority Field at Mile High against the Oakland Raiders on Sunday, Jan. 1, 2017, in Denver.

Denver Broncos head coach Gary Kubiak talks to Denver Broncos wide receiver Emmanuel Sanders (10) after he was penalized for excessive celebration after his touchdown in the fourth quarter of an NFL game at Nissan Stadium on Dec. 11, 2016, in Nashville, Tenn.

Denver Broncos head coach Gary Kubiak speaks during Super Bowl 50 Opening Night at the SAP Center on Feb. 1, 2016, in San Jose, Calif.

Denver Broncos head coach Gary Kubiak watches the scoreboard late in the fourth quarter during the team's loss 30-20 to the Oakland Raiders at Oakland-Alameda County Coliseum on Nov. 6, 2016, in Oakland, Calif.

Denver Broncos linebacker Von Miller (58) dumps Gatorade on Denver Broncos head coach Gary Kubiak right before the Broncos defeat the Carolina Panthers in Super Bowl 50 at Levi's Stadium on Feb. 7, 2016, in Santa Clara, Calif.

Denver Broncos quarterback Peyton Manning hugs head coach Gary Kubiak after his retirement speech at Dove Valley on March 7, 2016, in Englewood.

Denver Broncos general manager John Elway, right, and head coach Gary Kubiak, left, joke during the Denver Broncos' Super Bowl championship celebration and parade on Feb. 9, 2016, in Denver.

Denver Broncos head coach Gary Kubiak walks on the sideline during an NFL game against the Oakland Raiders at Mile High on Sunday, Dec. 13, 2015, in Denver.

Denver Broncos head coach Gary Kubiak calls time out in the second quarte of an NFL game against the Kansas City Chiefs at Sports Authority Field at Mile High Nov. 15, 2015, in Denver.

Broncos quarterback Trevor Siemian (13) talks to head coach Gary Kubiak during the fourth quarter of an NFL game against the Indianapolis Colts at Sports Authority Field at Mile High on Sunday, Sept. 18, 2016, in Denver.

Denver Broncos head coach Gary Kubiak celebrates with his wife, Rhonda Kubiak, on the field after the Broncos defeated the New England Patriots 20-18 in the AFC championship game at Sports Authority Field at Mile High on Jan. 24, 2016, in Denver.

Houston Texans quarterback Brock Osweiler (17) meets with Denver Broncos head coach Gary Kubiak after an NFL game at Sports Authority Field at Mile High on Oct. 24, 2016, in Denver. The Broncos defeated the Texans 27-9.

Denver Broncos head coach Gary Kubiak reacts during the first half of an NFL game against the Baltimore Ravens at Sports Authority Field at Mile High on Sept. 13, 2015, in Denver.

Denver Broncos head coach Gary Kubiak spins a football on his finger at Dove Valley before the start of practice on Dec. 7, 2016.

Head coach Gary Kubiak of the Denver Broncos walks onto the field after the Broncos' 24-6 win over the Oakland Raiders on Sunday, January 1, 2017. The Denver Broncos hosted the Oakland Raiders.

Head coach Gary Kubiak of the Denver Broncos stands on the field before the first quarter against the Oakland Raiders on Sunday, January 1, 2017. The Denver Broncos hosted the Oakland Raiders.

Head coach Gary Kubiak of the Denver Broncos stands on the field before the first quarter against the Oakland Raiders on Sunday, January 1, 2017. The Denver Broncos hosted the Oakland Raiders.

Denver Broncos head coach Gary Kubiak gets emotional as he announces that he will step down as head coach for the Denver Broncos at the UC Health Training Center on January 2, 2017 in Denver, Colorado. Kubiak led the Broncos to 24 victories during his tenure, the most of any coach in his first two seasons including a Super Bowl victory in 2015.

Denver Broncos head coach Gary Kubiak gets emotional as he announces that he will step down as head coach for the Denver Broncos at the UC Health Training Center on January 2, 2017 in Denver, Colorado. Kubiak led the Broncos to 24 victories during his tenure, the most of any coach in his first two seasons including a Super Bowl victory in 2015.

Denver Broncos head coach Gary Kubiak blows a kiss to his wife during his announcement that he will step down as head coach for the Denver Broncos at the UC Health Training Center on January 2, 2017 in Denver, Colorado. Kubiak led the Broncos to 24 victories during his tenure, the most of any coach in his first two seasons including a Super Bowl victory in 2015.

Denver Broncos head coach Gary Kubiak hugs Broncos GM John Elway, left, after his emotional announcement that he will step down as head coach for the Denver Broncos at the UC Health Training Center on January 2, 2017 in Denver, Colorado. Kubiak led the Broncos to 24 victories during his tenure, the most of any coach in his first two seasons including a Super Bowl victory in 2015.

Denver Broncos head coach Gary Kubiak waves to members of his coaching staff, family and members of the media after a press conference where he announced that he will step down as head coach for the Denver Broncos at the UC Health Training Center on January 2, 2017 in Denver, Colorado. Kubiak led the Broncos to 24 victories during his tenure, the most of any coach in his first two seasons including a Super Bowl victory in 2015.