Bibbs took one carry for no gain and caught two of three targets for six yards in Sunday's 23-21 loss to Houston.
Filling on for Chris Thompson (ribs) on passing downs once again, Bibbs fell shy of 50 scrimmage yards for the fourth week in a row. The change from Alex Smith (leg) to Colt McCoy under center doesn't seem likely to spark Bibbs' production in a Thanksgiving day matchup with the Cowboys,