The NFL position groups most in need of upgrades

Arizona's offensive line has been a problem for multiple seasons. Even after adding mobile quarterback Kyler Murray last year, the Cardinals had the eighth-worst sack rate in the NFL (8.3 percent). To support Murray's development, the team needs help at center and at the right side of the line.

Atlanta was tied for the second-fewest sacks in the league last season and has already moved on from former first-round pick Vic Beasley. While the Falcons have limited funds to work with under the cap, they must figure out how to address their pass rush.

The Panthers have now lost Thomas Davis and Luke Kuechly in consecutive offseasons, and thus the identity of their defense has completely changed. The team ranked dead last in the NFL with 5.2 yards per carry allowed and desperately needs to add some talent next to Brian Burns and Shaq Thompson.

Chicago's once solid line was depleted by injuries last season, with Kyle Long retiring following the year. The team averaged only 3.7 yards per rush attempt and ranked 11th-worst in sack rate. The Bears could use immediate help at right guard and left tackle, at the very least.

Cincinnati's secondary has been bombed in consecutive years and allowed the most yards per pass attempt in the league last year (7.8). The Bengals have used heavy draft investment in recent years, but the secondary struggled across the board last season and nickelback Darqueze Dennard is a free agent.

Cleveland's line ranked 13th-worst in sack rate last year and has a major void at left tackle with Greg Robinson's free agency and offseason arrest. Of course, the team could also use help on the right side of the line.

Dallas certainly needs to address strong safety with multiple free agents at that spot, and star corner Byron Jones could price himself out of Dallas with the team wanting to lock up Dak Prescott and Amari Cooper. The two spots are likely to be the focus of the team's draft.

Denver has a budding star in Courtland Sutton, but the talent is lacking behind him. Tim Patrick and DaeSean Hamilton have shown limited production in two seasons, and the Broncos traded Emmanuel Sanders. Surrounding young quarterback Drew Lock with weapons should be high on the team's wish list this offseason.

Detroit spent big money on Trey Flowers last offseason, but it didn't make much of a difference. The Lions tied for the second-fewest sacks in the NFL and had just a 4.4 percent sack rate, also second-worst. The interior of the line could be in for some turnover, with both Mike Daniels and A'Shawn Robinson entering free agency. 

Davante Adams is a star at wideout, but the rest of Green Bay's efforts to add help for Aaron Rodgers have failed. Jimmy Graham has disappointed in two seasons, and the Packers loaded 2018 wide receiver draft class has yet to produce.

Houston botched a 24-0 lead against the Chiefs in the AFC divisional round, which put thei team's secondary issues under the microscope. Cornerbacks Johnathan Joseph and Bradley Roby are set for free agency, along with safety Jahleel Addae after the team allowed 7.2 yards per pass attempt last season, ninth-worst in the NFL.

While T.Y. Hilton continues to play well for Indy, he's had durability issues lately and the rest of the Colts receivers haven't done much to fill the void. Devin Funchess didn't produce in his one year with the Colts, and they are probably asking too much of Zach Pascal as a No. 2 option.

Jacksonville's defense wasn't the same following Telvin Smith's retirement, as it allowed 5.1 yards per carry last season, second-worst in the league. Myles Jack has plenty of talent at middle linebacker, but he played only 11 games in 2019.

With or without Vontaze Burfict, the Raiders struggled at linebacker last season and have also cut veteran Tahir Whitehead this offseason. Linebacker will clearly be a high priority for the team in free agency and the draft.

The Chargers have already moved on from longtime starter Philip Rivers. Tyrod Taylor has starting experience, but he's not a great option to start after how poorly he played at the beginning of the 2018 season in Cleveland.

The Dolphins traded tackle Laremy Tunsil before Week 1 last season, so it wasn't a surprise that they struggled to block all year. The team allowed an 8.6 percent sack rate, fifth-worst in the league, and they especially need help on the right side of the offensive line.

It was clear last offseason when Miami moved on from Cameron Wake that the team would be rebuilding. While the defensive line has some talent with Davon Godchaux and Christian Wilkins, getting to the quarterback was a major issue last year with a league-worst 4.1 percent sack rate.

Tom Brady seemed frustrated with his weapons for most of last season. The Pats were certainly missing Rob Gronkowski, and they got limited consistency from their receivers in 2019 beyond veteran Julian Edelman. Mohamed Sanu didn't fare well after being acquired from Atlanta, and rookie N'Keal Harry looked like...a rookie.

Jets quarterbacks were regularly running for their lives last year, with a 9.1 percent sack rate (fourth-worst). Le'Veon Bell's struggles to get to the second level were also partially due to the line's play. The Jets running game averaged a league-worst 3.3 yards per carry, and the offensive line has five free agents heading into the offseason.

The Giants have made one failed move after another at cornerback, as former first-round pick Eli Apple was a bust and Janoris Jenkins failed to deliver after signing in free agency. The team does see promise with 2019 first-round pick Deandre Baker but certainly needs more depth at corner.

The Eagles struggled to find healthy bodies at wideout last year, with regular absences from Alshon Jeffery, Nelson Agholor, and DeSean Jackson. Agholor is now a free agent, and Jeffery could be looking at a trade . Carson Wentz would likely welcome some new targets.

Seattle has become a run-first team partially due to its offensive line struggles, as Russell Wilson has been under pressure regularly. The Seahawks line allowed an 8.5 percent sack rate, sixth-worst in the league, and right tackle Germain Ifedi is a free agent.

Peyton Barber's continued struggles to get beyond the first level caused the Bucs to give second-year running back Ronald Jones an opportunity last year. He showed flashes but still averaged only 4.2 yards per carry. An explosive back could help the Bucs quarterback next year, though it remains to be seen who that will be as well.

Tennessee certainly has some pass rushing talent with Jurrell Casey, Cameron Wake, Harold Landry and young Jeffery Simmons, but the Titans had some struggles rushing the passer last year. They ranked 13th-worst in sack rate, and Wake played only nine games with 2.5 sacks as a situational pass rusher.

Washington has already moved on from Josh Norman, who struggled despite his big contract, and Aaron Colvin is also a free agent. The team goes into the offseason with one of the thinnest cornerback depth charts in the league.