Bill Musgrave led an offense that was sixth in the NFL in yards and seventh in scoring this season, but he won't be retained as the Raiders' offensive coordinator.
NFL Media first reported Tuesday that Musgrave will not have his contract renewed and that Oakland plans to promote quarterbacks coach Todd Downing to be Musgrave's replacement.
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The Raiders finished the regular season 12-4, but lost to the Texans in last Saturday's AFC wild-card game. The Raiders were on track to be one of the top two seeds in the AFC, but starting quarterback Derek Carr suffered a broken leg in the fourth quarter of a Week 16 win over the Colts and was lost for the season.
The offense suffered without Carr, who was in the midst of an MVP-caliber season.
Coach Jack Del Rio had voiced frustration during the season over Oakland's inconsistent running game.
Following a Dec. 8 loss to the Chiefs, Del Rio said he "would have like to see a little more big-boy ball."
Sporting News' Alex Marvez reported earlier Tuesday the Raiders will also part ways with defensive backs coach Marcus Robertson. The Raiders will keep defensive coordinator Ken Norton Jr. despite the unit ranking 26th in total defense.