The offensive line is a perennial problem, as is the interior defensive line, but the Los Angeles Chargers have a roster that is going to be competitive every week and could do some damage in the AFC West with good quarterback play.

Denver's 2020 season will be all about the development of Drew Lock and his playmakers, combined with Vic Fangio putting his stamp on the defense. If it all comes together, the Broncos will surprise in 2020.

Lamar Jackson and the Baltimore Ravens offense dominated inside the red zone in 2019, while Vic Fangio's defense set the tone on the defensive side of the ball.

The reigning Super Bowl champion Kansas City Chiefs enter 2020 with plenty of solid units on offense and defense.

The Jon Gruden era is set to enter a pivotal season, as Year 3 must show signs of improvement. The overhauled roster looks solid across the board, but like most teams, success will be determined through the air.

PFF's Timo Riske kicks off a series of articles called Splits That Matter, where he will investigate different performance splits in the NFL. Here, he continues to investigate wide receivers and starts with red-zone performance.

PFF takes a close look at the NFL's recent blockbuster trades and offers three takeaways to the process that has seen the likes of DeAndre Hopkins, Jamal Adams, Stefon Diggs, Trent Williams and DeForest Buckner all change teams this offseason.

Salary cap expert Brad Spielberger weighs in on what the recent opt-outs mean for the NFL's teams, players and contracts.

PFF unveils its 32-team NFL backfield rankings for the 2020 NFL season.

The Los Angeles Chargers signed star edge defender Joey Bosa to a five-year, $135 million contract extension on Tuesday, per ESPN's Adam Schefter.

The Tennessee Titans will be leaning on quarterback Ryan Tannehill and running back Derrick Henry once again in 2020 to lead them back to the playoffs.

PFF unveils its 32-team NFL secondary rankings for the 2020 NFL season.

PFF analyst and former Cincinnati Bengals safety Solomon Wilcots looks back at some memorable rookie performances to gather a general range of outcomes for No. 1 overall pick Joe Burrow.

The Jacksonville Jaguars' roster needs work across the board, but their chance at success rests largely on the shoulders of second-year quarterback Gardner Minshew.

The Denver Broncos have smartly revamped their skill positions with an incredibly talented group of young playmakers.

Atlanta Falcons quarterback Matt Ryan and Seattle Seahawks running back Chris Carson are two players who could lead their positions in overall grade in 2020.

Since trading up to draft quarterback Deshaun Watson in the first round of the 2017 NFL Draft, the Texans have been treading water trying to recapture their draft capital and build a well-rounded team around their signal-caller.

New Indianapolis Colts' quarterback Philip Rivers will work behind the best offensive line of his career in 2020.