Odds to win Super Bowl LI

Any season that ends without a Super Bowl win seems to be a disappointment for head coach Bill Belichick and quarterback Tom Brady. They fell short in the AFC Championship Game this season, but Vegas apparently feels Brady will have another run in what will be his age 39 season.

Cam Newton and Co. were 2015's most dominant team and are looking for a repeat performance. The Panthers were able to keep their coaching staff intact despite their success and return one of the NFL's most talented defenses. Once again, the key on offense will be quarterback Cam Newton.

The Seahawks didn't have enough in the NFC Divisional Round to make an historic comeback vs. Carolina, and they'll turn the page on Marshawn Lynch this offseason with the star back's retirement. If Jimmy Graham can return healthy, Russell Wilson could have an excess of riches at his disposal with an offense that's starting to catch up with the defense.

Injuries plagued the Steelers all season, including the AFC Divisional Round without their top two running backs, Antonio Brown and a banged-up Ben Roethlisberger. Even with those issues, they challenged the Broncos on the road. The offense can keep up with anyone if Pittsburgh can find better luck with health.

Aaron Rodgers looked human for much of 2015 due to the loss of Jordy Nelson and issues on the team's offensive line. Nelson will return from a knee injury, and the Packers are smart enough to build greater depth on the line this offseason. They've also challenged Eddie Lacy to lose weight during the offseason, as he played out of shape for much of 2015.

After an MVP-caliber season, Carson Palmer looked terrible in the playoffs. The team has found potential young stars in running back David Johnson and wide receivers John Brown and J.J. Nelson, but how well Palmer bounces back at age 36 will be key. Another concern is finding a pass rush after the Cardinals struggled in the playoffs.

It was another embarrassing playoff loss for the Bengals, albeit without starting quarterback Andy Dalton. Cincinnati looked as good as any team in football when Dalton was healthy during the regular season. The offense did suffer a huge loss with offensive coordinator Hue Jackson taking the Browns head coaching job.

We've witnessed just how important Tony Romo is to the Cowboys in 2015, but that wasn't the team's only problem. Dez Bryant rushed back from a broken foot, and the team couldn't find a viable replacement for DeMarco Murray at running back. They have work to do in the offseason, but an early draft slot will be helpful.

It's assumed the Broncos will turn to Brock Osweiler at quarterback, and the team survived with him when Peyton Manning was injured in 2015. The defense is still one of football's best, but it's difficult to envision the team going very far unless Osweiler makes big strides.

An injury-riddled 2015 season didn't help, but the Colts played horribly with or without starting quarterback Andrew Luck. They desperately need to fix their offensive line issues and also add a pass rush.

The Chiefs came up short in the playoffs due to injuries, including top players Jamaal Charles, Justin Houston and Jeremy Maclin. Considering those issues, it's surprising Vegas has so little confidence in their chances of going all the way. The front office has a pivotal offseason with several key defensive players potentially becoming free agents, but head coach Andy Reid has created a perennial contender.

The end of Minnesota's season was quite ugly, with kicker Blair Walsh missing a chip shot field goal that would have beaten Seattle in the Wild Card Round. The team still made nice strides in 2015, winning the NFC North and seeing its offense develop slowly but surely behind quarterback Teddy Bridgewater.

No team had more injuries in 2015 than the Ravens, and it started early when first-round pick Breshad Perriman hurt his knee and never played a down. The team's young players did show some fight late in the season, and Baltimore got a boost when wide receiver Steve Smith decided to come back for 2016 despite his threat of retirement. Quarterback Joe Flacco will be returning from knee surgery, as well.

Head coach Rex Ryan's prediction of a playoff run didn't come to fruition in his first season, and the team's defense saw a drop-off with the transition from former coordinator Jim Schwartz. The team did find a viable quarterback in Tyrod Taylor, and Sammy Watkins looked like a star when he was healthy.

It was a tail of two halves for first-year head coach Dan Quinn. Atlanta started the season 6-1 but only won two of its final nine games. Quinn needs more time to shape the team's defense, but Matt Ryan's poor play down the stretch is an even greater concern.

Vegas apparently has no confidence in New York's 2015 improvement, falling just short of making the playoffs. Ryan Fitzpatrick and Brandon Marshall paid huge dividends for the offense, and the defensive talent kept it as one of the best units in the league. Still, it's difficult to bet on a team in the same division as the Patriots.

The news of a possible Calvin Johnson retirement could be a killer for the Lions' chances of making strides in 2016, even with a new-look front office. The team will likely need to rely more on the running game and certainly needs to address its offensive line this offseason.

Washington shocked the football world by winning the NFC East, albeit with a pedestrian 9-7 regular-season record. The Redskins have some exciting pieces to build around after a great 2015 draft and are finally set to move on from the Robert Griffin III distraction.

The Saints struggled to find consistency during 2015, especially on defense. Their defensive talent must be addressed, but that's been stated numerous times in recent seasons without any improvement. With Drew Brees entering his age 37 season, the current Saints as we know them are running out of time.

The 49ers have plunged quickly into the depths of the NFL cellar, going 5-11 last season and firing head coach Jim Tomsula after only one season. They've made a risky hire in Chip Kelly, and he will have far less offensive talent to work with than he did in Philadelphia. The team does have an exciting young running back in Carlos Hyde, if he can stay healthy.

John Fox did the best with what he had to work with in his first season with the Bears, and the offense certainly made progress. Losing acclaimed offensive coordinator Adam Gase could be detrimental to the team's development, but the talent turnover in the new regime has gone well through one draft.

The Giants curiously fired two-time Super Bowl-winning head coach Tom Coughlin, only to promote offensive coordinator Ben McAdoo. The offense is just fine with Eli Manning and Odell Beckham Jr., but the defense bent far too often last season. It's unclear how the transition to McAdoo will address the team's shortcomings.

The Rams continue to be one of the most disappointing teams in football, despite an embarrassment of riches on defense. Head coach Jeff Fisher was likely only retained because he had experience moving once with the Titans organization and will do so again with the Rams going from St. Louis to L.A. Todd Gurley is a budding star at running back, but this team has no chance unless it finds a quarterback.

Brian Hoyer's horrendous play vs. Kansas City in the Wild Card Round showed just how badly the Texans need a quarterback. It's unlikely they have an answer within the organization, and it remains to be seen where they will find one this offseason. The defense has developed into one of the league's best, adding talent around J.J. Watt.

Adam Gase has been one of the NFL's hottest head coaching names over the last two years, and he landed with a talented roster. Miami had high expectations in 2015, but it's set to lose key pieces in 2016 due to the cap situation. Still, Gase could have a contender on his hands if he can develop Ryan Tannehill.

The 2015 season was one Eagles fans would like to forget. Ownership went a step further, turning back the clock three years and hiring Andy Reid's offensive coordinator in Kansas City, Doug Pederson, as head coach. There are huge questions to be answered on offense after former head coach Chip Kelly gutted the offensive talent.

The Bucs shocked the football world when they fired Lovie Smith after only two seasons and promoted offensive coordinator Dirk Koetter. They loved Jameis Winston's rookie development, and the offense has started to develop some pieces around him. It's still probably too much to ask the Bucs to contend in 2016, especially sharing a division with the Panthers.

San Diego will be in flux during 2016, remaining in San Diego but also likely organizing a move to L.A. soon. That puts the coaching staff and players in a very tough position. The reason for optimism is the return of offensive coordinator Ken Whisenhunt, who had great success with the Chargers in 2013.

Ownership has stated its high expectations for improvement from the Jaguars in 2016. The Jags did start to make some progress, especially on offense with the development of quarterback Blake Bortles and his wideout tandem of Allen Robinson and Allen Hurns. 

The Raiders' future is very much up in the air, but the team will remain in Oakland in 2016. The Raiders started to make nice progress last season with a young offensive trio of Derek Carr, Amari Cooper and Latavius Murray, along with star pass rusher Khalil Mack.

The Titans retained interim head coach Mike Mularkey, which wasn't the most popular move. Rookie quarterback Marcus Mariota showed great flashes when he was on the field, but knee problems two years in a row are a major concern. The team quickly needs to add talent around him.

It seems that the Browns are cleaning house and looking for a new quarterback every other year. They're set to turn the page on Johnny Manziel, and it will certainly take time for new head coach Hue Jackson to find his guys. The Browns are thinking outside the box, adding stats-minded former Dodgers GM Paul DePodesta to their front office. His impact on the team's draft and free agent moves will be extremely interesting.