Pagano, 46, is the brother of Indianapolis Colts head coach Chuck Pagano.
Pagano has worked on the Chargers' coaching staff since 2002 and was promoted to defensive coordinator in 2012.
Pagano oversaw a defense this season that was instrumental in getting the Chargers to the postseason. After upsetting the Cincinnati Bengals in the AFC wild-card round, San Diego was eliminated by the Denver Broncos in Sunday's divisional playoff game.
--Seattle Seahawks wide receiver Percy Harvin, who suffered a concussion in Saturday's playoff win, won't know until at least Wednesday on his playing status for this week, coach Pete Carroll said.
Harvin must go through the NFL's mandatory concussion protocol.
Harvin suffered a concussion late in the first half of Saturday's 23-15 NFC divisional playoff victory over the New Orleans Saints.
"We (are) fortunate that we got the extra day," Carroll said Monday on his 710 ESPN Seattle radio show. "That really helps in these kinds of situations. We'll just see how he does. We won't know until Wednesday or Thursday until after all the tests are run."
The Seahawks will host the San Francisco 49ers in Sunday's NFC Championship Game.
Harvin tried to make a leaping catch in the end zone late in the first half Saturday before falling backward and hitting his head on the turf.
Harvin had major hip surgery on Aug. 1 to repair a torn labrum and was playing in only his second game of the season and his first since Nov. 17 against Minnesota.
--The Oakland Raiders have re-signed defensive coordinator Jason Tarver on the day his contract expired, the team announced Tuesday.
The Raiders ranked 22nd in total defense this past season after finishing 18th the season before in his first two years on the job.
The Raiders had confirmed Dennis Allen's return as head coach last week.
The return of Tarver and Allen suggests the Raiders think the current staff has earned another year.
The Raiders did a two-year contract extension for assistant head coach-offensive line coach Tony Sparano after the season.
--The Denver Broncos have signed free agent cornerback Marquice Cole, who was on and off the New England roster this season, the team announced Tuesday as it prepares to face the Patriots in the AFC Championship Game.
The Broncos also signed practice squad tackle Vinston Painter to their active roster and placed cornerback Chris Harris Jr. and defensive end Derek Wolfe on injured reserve.
Cole (5-10, 195 pounds) is a fifth-year player who has seen action in 64 regular-season games with the New York Jets (2009-11) and New England (2012-13), totaling 36 tackles, four interceptions and three fumble recoveries in addition to 51 special-teams stops.
--The New York Giants have hired former Green Bay Packers quarterbacks coach Ben McAdoo as their new offensive coordinator, the team announced Tuesday.
The Miami Dolphins and Giants interviewed McAdoo for their top offensive job. He also interviewed with the Cleveland Browns for their head coaching opening.
McAdoo served as Green Bay's quarterbacks coach the past two years, working with one of the league's best in three-time Pro Bowler and 2011 MVP Aaron Rodgers.
The Giants interviewed McAdoo on Monday for the job vacated by the retirement of longtime offensive coordinator Kevin Gilbride.
McAdoo was the fourth candidate to interview for the job according to ESPN.com, joining former Giants assistant Mike Sullivan, former Tennessee Titans offensive coordinator Dowell Loggains and former Houston Texans quarterbacks coach and UCLA coach Karl Dorrell.