Everyone thinks the Seahawks have found a new lead running back in Justin Forsett.

Everyone except Jim Mora.

"No, Julius is our starter. He's our starting running back," Seattle's coach said Monday, adding that he hasn't even thought about demoting Julius Jones while he remains pained by a bruised lung.

Forsett has emerged as a diminutive dynamo while Jones, signed to replace Shaun Alexander as Seattle's No. 1 rusher before last season, has been out.

The 5-foot-8 Forsett, drafted in the seventh round out of California in 2008, ran for 123 yards three weeks ago at Arizona. Sunday at St. Louis, the 24-year-old filled in again for Jones and romped for 130 yards on 22 carries with two touchdowns _ all career highs _ as the Seahawks won their first road game in seven tries.

Forsett had 123 yards total through seven games before Jones got hurt and was coughing up blood Nov. 15 at Arizona.

Yet Mora said Jones will not lose his job because of injury.

That's even though the 28-year-old Jones has one 100-yard game this season, way back in the opener against the Rams. Jones is also gaining just 3.7 yards per carry to Forsett's 5.7 and has two touchdowns rushing to Forsett's four.

The Seahawks moved up two spots to 28th in the league after Forsett's performance on Sunday. Mora says he's sticking with Jones even though Seattle (4-7) probably ought to use the season's final five games to determine whether the club needs to draft a running back early in April's draft.

"If he's fully healthy, and he's had a full week of practice, and everybody feels comfortable that he would be able to bear the workload that he would have to handle to be effective, then he would start," Mora said of Jones' status for Sunday's home game against San Francisco (5-6).

"But that being said, Justin's earned the right to carry the ball. ... So we're going to make sure he gets touches."

Mora said he expects Jones to be able to practice this week _ though he noted Jones also practiced last week before telling trainers before Sunday's game he was "still feeling tenderness to the touch, pain."

"I believe he will be ready, but I can't say with 100-percent certainty," Mora said.

Seattle's Sunday was a revelation for a team that set a franchise low with just 4 yards on 13 rushes the previous week against Minnesota. The Seahawks romped for a season-high 170 on 31 carries in St. Louis.

Then again, it was against the 1-10 Rams. Seattle's previous season high in rushing came against them, and four of the Seahawks' eight wins in the last two seasons have come against St. Louis.