Veteran defensive coach Billy Davis, who has had stints coaching with the Steelers, Panthers, Packers, Falcons, Giants, 49ers, Cards and Browns twice, will be the Eagles’ next defensive coordinator, two league sources told CSNPhilly.com Thursday morning.

Davis most recently coached on Pat Shurmur’s staff with the Browns the last two years. Shurmur is also joining Chip Kelly’s new staff with the Eagles, sources have said.

The Eagles have not commented on or confirmed any coaching hires since Kelly was named head coach, and there was no comment on CSNPhilly's report regarding Davis.

In four years as an NFL defensive coordinator – two with the 49ers and two with the Cards – Davis has never had a unit ranked higher than 14th in points allowed or 20th in yards allowed.

Davis’s father, Bill Davis, was a front-office executive in the Eagles' personnel department in 1988 and 1989, but resigned after losing a power struggle with head coach Buddy Ryan.

Davis, who has operated both the 3-4 and 4-3 along the way in his coaching career, becomes the Eagles’ fifth defensive coordinator in six years. Sean McDermott took over after the tragic death of Jim Johnson in 2009. He was replaced by Juan Castillo after the 2010 season, and Castillo was replaced six games into last year by Todd Bowles.

The addition of Davis ends a long, mysterious process that saw the Eagles associated with Alabama defensive coordinator Kirby Smart and Georgia defensive coordinator Todd Grantham and also linked with Ravens linebackers coach Ted Monachino and 49ers secondary coach Ed Donatel. However, a league source told CSNPhilly's Geoff Mosher on Thursday that the Eagles never requested permission to speak with Monachino.

Kelly, hired on Jan. 16, has put together most of his coaching staff, and although the Eagles haven’t confirmed anything, league sources have confirmed the addition of several defensive coaches to his staff, including

But it took him three weeks to hire a defensive coordinator, even though Davis has been available since Shurmur was fired on Dec. 31.