Josh McDaniels | Interview: Jan. 10

Current Position: New England Patriots offensive coordinator

McDaniels, 43, has been the Patriots offensive coordinator since he rejoined the team in 2012. The unit picked up right where it left off under McDaniels' watch, ranking in the league's top 10 on eight separate occasions from 2006-2008 and 2012-present. The Patriots boasted the league's No. 1 offense in 2007, 2012 and 2017. McDaniels has worked closest with future Hall of Famer Tom Brady, who has made the Pro Bowl 10 times with McDaniels as his quarterbacks coach and/or coordinator. New England won three Super Bowls during McDaniels' current stint (2012, 2015, 2017) and three others (2002, 2004, 2005) when he was establishing himself as an assistant during the early part of his career.

McDaniels has head coaching experience, too. From 2009-10, McDaniels served as the head coach of the Denver Broncos, going 11-17 before his dismissal. McDaniels won his first six games as a head coach but the team ultimately hit a rough patch and finished 8-8. The Broncos were 3-9 before parting ways with him in 2010.

McDaniels began his coaching career as a graduate assistant under Nick Saban at Michigan State in 1999. He joined the Patriots in 2001 as a personnel assistant and steadily rose the ranks before taking over as quarterbacks coach in 2004. He assumed the offensive coordinator role in 2006 and held that position until he left for the Broncos.

5 things to know about McDaniels

Kevin Stefanski | Interview: Jan. 9

Current Position: Minnesota Vikings offensive coordinator

Now in his 14th season with the Vikings, Stefanski, who has worked under three different head coaches, is the longest tenured coach in Minnesota. He was elevated from quarterbacks coach to offensive coordinator in Week 15 of the 2018 season and promptly guided the unit to two of its best showings of the season. In his first full season as coordinator, Stefanski led a unit that ranked eighth in the NFL in scoring offense (25.4 points per game) and sixth in rushing offense (133.3 yards per game). Quarterback Kirk Cousins finished the regular season with the fourth-best passer rating among the league's starters (107.4) and threw 26 touchdowns to just six interceptions.

Stefanski was a defensive back at Penn but has spent his entire coaching career on the offensive side of the ball. And he's weathered plenty of change along the way. After working closely with Brad Childress as his assistant from 2006-08, Stefanski was elevated to assistant quarterbacks coach in 2009, allowing him to work alongside quarterbacks coach Kevin Rogers and veteran signal-caller Brett Favre. He maintained the position in 2010 and 2011 amid changes at head coach and quarterbacks coach. When Mike Zimmer took over as head coach in 2014, Stefanski transitioned to tight ends coach for two seasons and running backs coach for another before he was back with the quarterbacks in 2017. Despite a change at offensive coordinator from Pat Shurmur to John DeFilippo entering the 2018 season, Stefanski maintained his position before eventually taking over for DeFilippo, who was fired after the team's Week 14 loss to the Seahawks.

5 things to know about Stefanski

Jim Schwartz | Interview: Jan. 8

Current Position: Philadelphia Eagles defensive coordinator

Schwartz, 53, has led one of the league's toughest defenses in Philadelphia since 2016. The unit's best efforts came in 2017 during its Super Bowl LII run. The Eagles led the league in rush defense and ranked fourth in the league with 31 takeaways before surrendering just 17 combined points in their two NFC playoff victories. Though battered with injuries this season, Philadelphia's defense was once again among the best in the NFL against the run, allowing 90.1 rushing yards per game -- the third-best mark in the league.

Schwartz was the head coach of the Detroit Lions from 2009-2013, going 29-52 and making one playoff appearance. Schwartz took over following Detroit's 0-16 2008 campaign and led the Lions to their first victory in more than a year in Week 3. The Lions won two games in 2009 and added four more to the total in each of the following two seasons, peaking with a 10-6 mark in 2011. Led by young quarterback Matthew Stafford and a staunch defense, the Lions went 10-6 that year before falling to the Saints, 10-7, in the Wild Card round. Detroit fell to 4-12 the following season before going 7-9 in Schwartz's final season as head coach.

5 things to know about Schwartz

Brian Daboll | Interview: Jan. 6

Current Position: Buffalo Bills offensive coordinator

Under Daboll's direction, this year's Bills squad went 10-6 and made the playoffs as the fifth seed in the AFC. Their offense has largely revolved around the running game, led by the three-pronged attack of running backs Frank Gore and Devin Singletary and quarterback Josh Allen. The three carried the ball over 100 times each this season, with Gore leading the way with 166 carries. Singletary led the team with 775 yards on the ground on 151 attempts while Allen led all quarterbacks and was eighth in the league with his nine rushing touchdowns. The Bills boasted the eighth-best rushing attack in the NFL, averaging 128.4 yards per game.

After a few years at the collegiate level with William & Mary and Michigan State, Daboll has spent the better part of the last two decades in the NFL across six teams, making stops with New England (2000-06, 2013-16), the New York Jets (2007-08), Cleveland (2009-10), Miami (2011), Kansas City (2012), and in his offensive coordinator role with Buffalo since 2018. He reunited with Nick Saban as part of his national championship staff at Alabama in 2017 as co-offensive coordinator and quarterbacks coach. His lone defensive assistant role was with the Patriots as an assistant from 2000-01. Since then, he has been on the offensive side of the ball, taking on the coordinator position with the Browns, Dolphins, Chiefs and the Bills.

5 things to know about Daboll

Robert Saleh | Interview: Jan. 4

Current position: 49ers defensive coordinator

Saleh, 40, has been in his position with the 49ers since 2017. After the 49ers made incremental improvements in Saleh's first two years at the helm, this season has been, by far, the best, as San Francisco finished second in the league in total defense (281.8 yards allowed per game) and tied for first in yards allowed per play (4.7). No one was better than the 49ers in pass defense (169.2 yards allowed per game), either, and they ranked fifth in the league with 48 sacks. Saleh's defense played a big role in the 49ers' rise up the NFC West, a division they won for the first time since 2012, and why they hold the No. 1 seed in the upcoming NFC playoffs.

Saleh won a Super Bowl in 2013 as a defensive quality control coach with the Seattle Seahawks. He's also worked with the Houston Texans, who gave him his first NFL job in 2005 as a defensive intern before promoting him to defensive quality control coach in 2006 and assistant linebackers coach in 2009.

5 things to know about Saleh

Eric Bieniemy | Jan. 3

Current position: Chiefs offensive coordinator

Bieniemy, working under longtime head coach Andy Reid, has been the Chiefs offensive coordinator for the past two seasons. In that time, Patrick Mahomes has emerged as one of the NFL's best quarterbacks, taking home MVP honors last season after becoming just the second quarterback in NFL history to throw for more than 5,000 yards and 50 touchdowns and continuing that kind of proficiency during a 2019 season in which Kansas City won a fourth straight AFC West title. In 2018, the Chiefs ranked first in the NFL in scoring offense, passing offense and yards per play. Despite injuries that sidelined Mahomes and Pro Bowl wide receiver Tyreek Hill for a stretch of games, the Chiefs ranked fifth in scoring offense, sixth in total offense and second in yards per play this season.

Taken in the second round by the San Diego Chargers in the 1991 NFL Draft, Bieniemy would go on to spend nine seasons in the league with the Chargers, Cincinnati Bengals and Philadelphia Eagles as a running back, kick returner and punt returner. His game became a bit more multifaceted when he arrived in the "Queen City," averaging 33 catches per season in his four seasons with the Bengals. After retiring, he would go on to be the running backs coach at Colorado, helping the program win the Big 12 championship in 2001. He then made stops as a running backs coach at UCLA and the Minnesota Vikings, working with high-profile backs Maurice Jones-Drew and Adrian Peterson along the way. Upon his arrival to the Chiefs, he guided Jamaal Charles to a career-high 12 touchdowns and more than 1,200 yards on the ground in 2013.

5 things to know about Bieniemy

Greg Roman | Interview: Jan. 2

Current position: Ravens offensive coordinator

Under Roman's watch this season, Baltimore led the league in scoring offense with 33.2 points per game and ranked second in total offense (407.6 yards per game). Most notable, though, was how the Ravens did it, as they became the first team in league history to average more than 200 yards passing and 200 yards rushing per game. The Ravens' average of 206 rushing yards per game was nearly 62 yards better than the second-best team (San Francisco), and the team's total of 3,296 for the season broke an NFL record that had stood for 41 years. In just his second NFL season, Lamar Jackson set the league record for rushing yards by a quarterback (1,206) while also leading the league in touchdown passes (36).

No stranger to the Cleveland area, Roman spent his college days starring on the defensive line at John Carroll University. He earned All-Ohio Athletic Conference honorable mention status after his senior season as the Blue Streaks captured a share of the 1994 OAC title. It would be the Blue Streaks' last conference championship until 2016, when they ended national power Mount Union's incredible winning streak of 112 regular season games.

5 things to know about Roman

Mike McCarthy | Interview: Jan. 2

Current position: Former Packers head coach

(McCarthy has accepted the Cowboys head coach position.)

When it comes to experience and accomplishments, McCarthy has what a lot of current coaches are striving to achieve. He was the Packers head coach for 13 seasons, won 135 games, made nine trips to the postseason, won the division six times and, most importantly, coached the Packers to a Super Bowl XLV victory over the Pittsburgh Steelers. His 125 regular season victories rank 30th in league history and his .618 win percentage is 29th among coaches who have won at least 30 games. If McCarthy becomes a head coach in 2020, he'll be, at worst, fifth among active coaches for most career wins.

McCarthy has been calling plays in the NFL since 2000, when he landed his first coordinator gig with the New Orleans Saints. His best year there was 2002, when the Saints -- led by Aaron Brooks, Joe Horn and Deuce McCalister -- ranked third in the NFL with 27 points per game. The Saints also won the NFC South in McCarthy's first season. He was the coordinator for Haslett, who was fired in 2004. McCarthy went to San Francisco and filled the same position in 2005 under Mike Nolan. McCarthy had a connection to Green Bay, which hired him in early January 2006, because he was Favre's quarterbacks coach in 1999. McCarthy got his big NFL break in 1993, when Marty Schottenheimer plucked him away from the University of Pittsburgh to be an offensive quality control coordinator for the Kansas City Chiefs.

5 things to know about McCarthy