As we enter the 2016 regular season, we asked our NFL Nation reporters to analyze the job security of the 32 NFL head coaches, with each receiving a rating of 1 to 5.

Here's the scale each coach was rated on:

5: Hot seat -- Out if the season is a big disappointment.

4: Warm seat -- Not safe if the season is a disappointment.

3: Lukewarm seat -- Not under fire, but not disaster-proof.

2: Cool seat -- Safe barring a total disaster.

1: Cold seat -- No way he'll get fired.

Rating: 5 = Hot seat

Jim Caldwell: 5

Caldwell seems to have a good relationship with new general manager Bob Quinn, but this is still Quinn's first year as a GM. If Caldwell doesn't produce on the field, Quinn could decide to look for his own guy to replace Caldwell. While Caldwell is beloved by Lions players and is genuinely a good man, he needs to show the franchise is headed in the right direction this season. Otherwise, Quinn might look to go another way. -- Michael Rothstein

Gus Bradley: 5

Owner Shad Khan is expecting victories in Season 4 of the rebuild. While he hasn't put an exact number on it, it's not a stretch to think Bradley needs to win eight or more games -- and have the Jaguars in contention in the AFC South -- to keep his job. The Jaguars are just 3-20 under Bradley in games played in September and October, so a good start in 2016 is imperative. Obviously injuries, especially to QB Blake Bortles, can change things, but that may be the only acceptable excuse for a poor season. -- Mike DiRocco

Mike McCoy: 5

After a 4-12 season that included going winless against the AFC West, McCoy's seat is scorching. With the pressure of a stadium vote in November, the Spanos family could make a midseason change if the Chargers struggle to start the season. The effort and enthusiasm of his team has been better during training camp, but that has to translate into wins for McCoy to keep his job in 2016. -- Eric D. Williams

Rating: 4 = Warm seat

Rex Ryan: 4

Speculation has been rampant since the end of last season about Ryan's future in Buffalo after his 8-8 record fell short of expectations in Year 1. Even franchise icon Jim Kelly publicly stated that Ryan would likely be fired if he missed the playoffs in 2016. But Ryan's job security might actually be helped by injuries to his first two draft picks, Shaq Lawson and Reggie Ragland, giving Ryan an opportunity to sell ownership on having a chance to coach his healthy, hand-picked defensive prospects in 2017. -- Mike Rodak

Jeff Fisher: 4

The Rams' brass wants to sign Fisher to an extension so that the longtime coach doesn't go into this season with an expiring contract. That obviously buys Fisher some time, but the fact remains that Fisher's teams have finished below .500 in each of his four prior seasons with the Rams. And the pressure is greater now, with the team moving to Los Angeles and trading up to take Jared Goff with the No. 1 overall pick. -- Alden Gonzalez

Rating: 3 = Lukewarm seat

Jason Garrett: 3

Garrett is 40-40 since becoming the Cowboys' full-time head coach, and he has just one playoff appearance. He has attempted to rebuild the Cowboys on the fly and has had some success, but he needs to win and he will have to do it without Tony Romo for a few games. Last season's 4-12 finish can be excused, but Garrett won't be able to use a prolonged Romo absence as the reason why the Cowboys didn't win in 2016. Owner Jerry Jones has been patient with Garrett, but if the Cowboys flounder this season, that patience could run out, even with three years remaining on Garrett's deal. -- Todd Archer

Chuck Pagano: 3

Pagano has led the Colts to the playoffs in three of his four seasons. Owner Jim Irsay gave Pagano a contract extension last January, but his job isn't safe by simply leading the Colts to AFC South titles. Irsay didn't give quarterback Andrew Luck a $140 million contract to just win the division. He expects this team to be among the NFL's elite teams sooner rather than later. -- Mike Wells

Rating: 2 = Cool seat

John Harbaugh: 2

Harbaugh is the sixth-winningest active coach (.608 win percentage), and he has the second-most playoff victories (10) by an NFL coach in his first eight seasons. He also won Super Bowl XLVII. That track record combined with the organization's long history of continuity (only three head coaches in a 21-year existence) says Harbaugh is safe. There have been a few ruts recently. The Ravens haven't made the playoffs in two of the past three seasons. But it would take another disastrous season in 2016 for Harbaugh to feel any heat. -- Jamison Hensley

John Fox: 2

The Bears handed Fox way too much power and control to fire him after two seasons. Unless Fox retires, which would come as a total shock, he probably coaches the Bears until at least 2018. It will be interesting, though, to see what happens if the Bears regress in the fall. Fox received a free pass after going 6-10 last season, but people won't be so patient the second time around. Fox doesn't have to show the same kind of improvement in Year 2 that he did in Carolina and Denver, but the Bears are expected to hover around the .500 mark. Anything less will be a major disappointment. -- Jeff Dickerson

Marvin Lewis: 2

Lewis is 0-7 in the playoffs, and the Bengals melted down against the Steelers in the wild-card round last season. But Bengals owner Mike Brown has continued to stand by Lewis over the years, and that shouldn't change in 2016. Lewis, the longest-tenured NFL coach behind Bill Belichick, is safe unless the Bengals have a total meltdown this season, and even then, I still would be skeptical they make any change. It's just not how the Bengals operate. -- Katherine Terrell

Mike McCarthy: 2

How can a coach who has led his team to seven straight playoff appearances be anything other than a 1? Well, it has been five years since the last Super Bowl appearance, the past few years have featured playoff meltdowns and Aaron Rodgers' window of opportunity for another title is slowly starting to close. Still, the Packers' management likes McCarthy's consistency. As team president Mark Murphy regularly says, you can't win it if you're not in it. -- Rob Demovsky

Bill O'Brien: 2

The Texans would have to have a disastrous season and perform way below the level they are capable of for O'Brien to be in danger of losing his job. O'Brien is 18-14 through his first two seasons as an NFL head coach and works for a forgiving owner in Bob McNair. I think there is a better chance O'Brien signs an extension after the season. -- Sarah Barshop

Sean Payton: 2

Sure, a 2 ranking is pretty generous for a coach coming off back-to-back 7-9 seasons. But so was the five-year contract the Saints just handed Payton for more than $9 million per year. Eventually, they will need to see better results. But Payton led this franchise to its only Super Bowl win, and they continue to have faith in him as the best man to oversee their next rebuilding effort. -- Mike Triplett

Todd Bowles: 2

Bowles won 10 games as a first-year coach, earning the respect of the locker room. The arrow is pointed up, so it would take an utter collapse -- and then some -- for Bowles to get fired, even though this is a win-now team that hasn't made the playoffs since 2010. -- Rich Cimini

Jack Del Rio: 2

In just his second year, Del Rio has transformed the Raiders from a unit hoping to get over the hump to one expecting to make a playoff run. Of course, that should be the mantra of every coach. But as fullback Marcel Reece put it, Del Rio, with his staff heavy on former players, has changed the culture in Silver and Blackdom, and current players have totally bought in. Only a total disaster would warm the seat under Del Rio, who grew up in the shadow of the Oakland Coliseum as a fan of the Raiders in the late 1970s. -- Paul Gutierrez

Doug Pederson: 2

Questions persist as to whether Pederson is ready to effectively lead an NFL team. Barring a total disaster, though, you would think owner Jeffrey Lurie would give Pederson more than a season to prove his worth. Still without a Super Bowl trophy on the shelf, Lurie might not be as patient as he was when he bought the team back in 1994. But a reactionary move like firing a coach after one year would be out of character. -- Tim McManus

Chip Kelly: 2

Kelly comes to the 49ers from Philadelphia, where his every move was scrutinized, but he still won more games than he lost. He also is walking into a situation in which San Francisco just fired Jim Tomsula after one year. Even if the Niners struggle this season, it's hard to imagine a scenario in which they would want to have another coach for just one year. That type of instability would only delay the rebuilding process and force them to start from scratch again. If changes are made after a rough season, expect the attention to be placed on the front office this time. -- Nick Wagoner

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Dirk Koetter: 2

The Bucs were so encouraged by what they saw from Koetter's offense last season that they promoted him to head coach and let go of Lovie Smith. Because it's his first year, his seat is cool, but because the past two head coaches got only two years before they were fired, it's clear that ownership doesn't have a lot of patience. That is why Koetter gets a "2" instead of a "1." -- Jenna Laine

Mike Mularkey: 2

General manager Jon Robinson has bonded with Mularkey, and the two are completely aligned. Barring a disaster for the coach and his staff in their first season, Robinson would likely see a change as a setback that would cost the franchise valuable developmental time. The desire is big for continuity from Robinson and controlling owner Amy Adams Strunk. -- Paul Kuharsky

Jay Gruden: 2

Few seats have really ever been cold under owner Dan Snyder, but coming off a six-win improvement and an NFC East title, Gruden is in a good position entering his third season. Had last season unfolded differently -- if Kirk Cousins hadn't developed; if they hadn't won big -- the seat would have been hot in 2016. But it did unfold well and the Redskins are slowly building a good team. Gruden's offense has taken advantage of the talent in the passing game to build a potentially explosive attack. So barring a total collapse, Gruden will return in 2017. -- John Keim

Rating: 1 = Cold seat

Bruce Arians: 1

Arians is on the ice cold seat, and not just because he's the coolest coach in the NFL. Arians has won 34 games in three years, taking the Cardinals to the playoffs in the past two seasons, including a berth in the NFC Championship Game last season. He also changed the culture of what was once a chronically losing franchise. If there's any pressure, it's on Arians to keep winning. The need to get to the Super Bowl and win a title will start to grow with every winning season. -- Josh Weinfuss

Dan Quinn: 1

Quinn enters his second year with higher expectations, but I don't see his job being in jeopardy unless the Falcons totally bomb and have another four-win season like in 2013. Owner Arthur Blank said this about Quinn after the team imploded last season: "I've got complete confidence in Dan. He's going to be a great head coach for us for many years." The guy on the hot seat is general manager Thomas Dimitroff, who is almost certain to go if the Falcons miss the playoffs for the fourth consecutive season. -- Vaughn McClure

Ron Rivera: 1

If a zero was available, that would be it for Rivera. He has won the NFL Coach of the Year award twice in the past three years. He has taken the Panthers to the Super Bowl. He has a strong nucleus of Cam Newton, Luke Kuechly, Greg Olsen and Thomas Davis that should keep him winning for several years. Rivera hasn't been on the hot seat since team owner Jerry Richardson contemplated pulling the trigger during a 1-3 start to the 2013 season after consecutive 6-10 and 7-9 records. -- David Newton

Hue Jackson: 1

Few coaches are safer in the NFL than Jackson, thus he gets a rating lower than the lowest. The Browns brought in Jackson amidst much fanfare, and he has brought energy and excitement to the job. After hiring and firing coaches with regularity, the last thing Jimmy Haslam will do is give Jackson one year as coach. He's the most secure coach in any level of football. -- Pat McManamon

Gary Kubiak: 1

Kubiak's seat is as cool as his Super Bowl ring. Kubiak navigated weekly quarterback drama in 2015, when Peyton Manning was recovering from a foot injury. The coach also dealt with plenty of player injuries, and in his first year with the Broncos, the team won the third Super Bowl in the franchise's history. He's a former Broncos player, former long-time Broncos assistant coach and now head coach. He's everything Pat Bowlen always wanted in his tenure as the team's owner -- a guy invested in the Broncos, a guy who cares about the Broncos, coaching the Broncos. Kubiak still has one of the league's elite defenses at his disposal and fully expects to be in the playoff conversation again. -- Jeff Legwold

Andy Reid: 1

While Reid hasn't been wildly successful with the Chiefs, success is a relative term in Kansas City. The Chiefs won four games or fewer in four of the six seasons before his arrival, so his record of two wild-card playoff appearances and a postseason victory in his three years looks good by comparison. Chairman Clark Hunt appreciates the stability Reid brings to the Chiefs. They had three head coaches in the five seasons before hiring Reid in 2013. -- Adam Teicher

Adam Gase: 1

Gase, who was hired in January, is the Dolphins' third head coach in six seasons. But Gase will be given every opportunity to put together a winning program. There are no playoff expectations for Miami this year, so Gase is playing with house money in his first season. The pressure will go up in Gase's second and third year. -- James Walker

Mike Zimmer: 1

Zimmer was signed through 2017, but the Vikings gave him an extension before training camp, reportedly adding two years to his original deal. The organization loves the edge Zimmer has brought to the team, particularly to the Vikings' defense, and his no-nonsense style has been a hit with both players and fans. His future is tied to the quarterback situation, which was thrown out of order after Teddy Bridgewater's knee injury, but at the moment, Zimmer's stock couldn't be much higher in Minnesota. -- Ben Goessling

Bill Belichick: 1

Belichick, 64, is the second-oldest head coach in the NFL, but he remains one of the league's most secure in his position as he enters his 17th season. That makes him the longest-tenured head coach in the NFL, and for those who might be wondering why he's so safe, the shine of four Lombardi Trophies serves as the reminder. -- Mike Reiss

Ben McAdoo: 1

McAdoo is entering his first year as head coach and working for one of the most patient ownership groups. Even though the Giants haven't reached the playoffs in five years, McAdoo has some time to implement his system and develop a winner, especially with general manager Jerry Reese likely next in line to pay the consequences if there's no improvement. The Giants went 6-10 each of the past two seasons under Tom Coughlin, but they are expecting better from McAdoo in 2016. -- Jordan Raanan

Mike Tomlin: 1

Several coaches face pressure in 2016, but Tomlin is not one of them. The Steelers coach has never had a losing season since taking over the franchise in 2007. His .639 winning percentage is better than Bill Cowher or Chuck Noll. Tomlin is one of the safest coaches in all of football. -- Jeremy Fowler

Pete Carroll: 1

There may not be a colder seat in the NFL than Carroll's. He just signed a three-year extension this summer that will keep him in Seattle through 2019. The Seahawks have made it to at least the divisional round of the playoffs in four straight seasons. They've reached the Super Bowl twice during that time and won the title once. With Russell Wilson being only 27 years old and the defense having led the NFL in fewest points allowed for four straight seasons, Carroll's goal is to win at least one more Lombardi Trophy with the core of the roster in place. -- Sheil Kapadia