Sources: Williams to leave Jags

Updated: December 14, 2008, 5:32 PM ET news services

Jacksonville Jaguars owner Wayne Weaver and coach Jack Del Rio will shake things up on the field, in the front office and with the coaching staff after a disappointing season, sources told ESPN senior NFL analyst Chris Mortensen.

The first change involves defensive coordinator Gregg Williams not returning to Jacksonville. A one-year marriage to Williams is headed for divorce, sources told ESPN.

Del Rio wouldn't confirm the move to ESPN on Sunday.

"When Gregg signed here, we both agreed a one-yeal made sense because of other opportunities that could present themselves," he said. "This [report] is ahead of the game. Nothing's been decided."

Philosophically, it hasn't worked, and it wasn't an expensive hire because Williams had one year left at more than $2 million when he was let go by the Washington Redskins.

Williams could reunite with Jeff Fisher in Tennessee if Titans defensive coordinator Jim Schwartz lands a head-coaching job in the offseason.

Chris Mortensen is a senior NFL analyst for ESPN.