IRVING, Texas -- As soon as his sore left ankle will allow it, Julius Jones will again be the starting running back of the Dallas Cowboys.
He just won't be the only running back.
Jones and Marion Barber III are now a 1-2 punch, with Tyson Thompson also likely to get a few chances each game. How they are used will depend on everything from the type of defense the Cowboys are playing to how each player's strengths fit a certain situation.
"I am going to use all these guys," Parcells said Wednesday. "Why don't you call them all utility guys -- utility A, B and C."
Jones is still the front-runner because he proved what he can do by running for 787 yards during the last seven games of last season. But Barber has proven his worth with strong running, excellent blocking and good hands. Thompson has breakaway speed, but is still learning the finer points of the position.
"I think there is so much tread on those running backs on a game to game basis, so I want to make sure I've got enough to get through the game every week," Parcells said. "Don't give one guy the ball 40 times, if I've got an option."
Jones came into this season not only as the lead back, but as the focus of the entire offense. Then came a slow start, followed by the high ankle sprain in the fifth game.
Barber, a fourth-round pick, had gotten buried on the depth chart because of a foot problem midway through the preseason. He worked his way back up with a combination of smarts and skills, showing enough of both that the Cowboys released veteran Anthony Thomas while Jones was out.
Barber gained 95 yards against Seattle, earning his first career start against Arizona. He responded with 127 yards and two touchdowns, earning another start this past Monday night against Philadelphia even though Jones was back, too.
"I just thought to start with that maybe Marion might be a little bit in the flow a little bit better," Parcells said.
Their tag-team debut didn't go so well. Barber gained 46 yards on 13 carries and Jones had 16 yards on eight tries.
"We didn't get real good holes," Parcells said. "We didn't really block them real well. They were moving on us. They blitzed the run a couple of times. They caught us with minus plays."
Dallas' totals were 58 yards on 24 carries, its worst production since the third game of last season. But Parcells said it wasn't as bad as it sounded, noting that play action sucked in the defense and made possible two other big plays. Barber also had a 26-yard gain to set up the touchdown that got Dallas within 20-14.
Next up is a Detroit defense that, statistically, is even better against the run. And the Lions are coming off their best performance of the season, limiting Arizona to 38 yards on 16 carries.
Jones will start if his ankle can handle it.
"I'll look at him in practice," Parcells said. "I would have confidence to start him this week if he looks pretty good and I think he will."
Jones said he's not 100 percent, "but I'm good enough to go."
"I can't really cut as hard as I used to," he said. "I'm a guy who slashes and makes a lot of cuts. I think once the ankle heals up completely, I'll be able to start cutting on it."
Barber, the son of former NFL running back Marion Barber Jr., was in the same kind of role last year at the University of Minnesota. Despite sharing carries with Laurence Maroney, Barber still gained 1,269 yards and scored 11 touchdowns.
"I just got to be ready at all times," he said.
He's already gotten some friendly advice from Jones.
"He told me to step up. Not in a negative way, just to be ready," Barber said. "He's a real cool dude. He's been there helping me out."
Quarterback Drew Bledsoe likes the backfield rotation.
"It's a real luxury to have two guys, and in our case three guys, that can play from time to time because it's a brutally punishing position to play," Bledsoe said. "I think that with Julius continuing to get healthy and getting back toward 100 percent that that's going to help us.
"I would look for us to be more consistent, more productive in the running game down the stretch here for sure."