Saints’ Vitt is wary of 49ers’ top-ranked running game

METAIRIE — When the Saints face the San Francisco 49ers on Sunday, which quarterback they will go against — Alex Smith or Colin Kaepernick — is the least of their worries on that side of the ball.

Smith missed Monday’s game against the Chicago Bears because of a concussion and his status for the matchup with the Saints is in question.

Kaepernick, a second-year pro, took over for Smith and directed the 49ers’ easy 32-7 win over the Bears, completing 16 of 23 passes for 243 yards with two touchdowns while posting a passer rating of 133.1.

Saints interim coach Joe Vitt was more concerned Wednesday with the 49ers’ top-ranked running game which averages 165.3 yards a game and 5.5 yards per attempt.

“Both of those quarterbacks do a great job of functioning within the system, but this is a run-first offense,” Vitt emphasized. “They’re running the ball better than anybody in the NFL right now.

“They’re proficient at a gap scheme, they’re proficient at the toss-crack perimeter scheme, they’re proficient at pulling the guard to the front side. And, they have a great wham scheme.”

HARBAUGH COY: Niners coach Jim Harbaugh, who said Monday night that he’ll go with the quarterback that has the hot hand if Smith is cleared to play this week, wasn’t about to let the Saints know who they’ll be facing.

“In both guys, we have quarterbacks we’re confident in and believe in — and have won for us,” he said, “Alex over a long period of 25 games and Colin playing winning football the last two times he’s been out on the field.

“Plus, (Kaepernick) has gotten to play this year. Both have displayed that they are guys that we believe in, are confident in, and can win for us.”

Vitt said the Saints simply have to be ready for both and that they can’t be too consumed with who’ll eventually start.

STRIEF RETURNS: The Saints got good news Wednesday when right tackle Zach Strief, who missed the last two games with a groin injury, was able to practice on a limited basis for the first time since being hurt on Nov. 5.

Strief said he had a procedure done by noted sports hernia specialist Dr. William Meyers, who repaired a core muscle injury and not a sports hernia.

Strief said Thursday will be a key day for him to see how he responds to Wednesday’s physical activity, but the decision to play or not play Sunday will lie with the coaches and trainers.

“I was just trying to get back into the routine and see how things are,” said Strief. “Right now, I feel great, but (Thursday) I could wake up and have swelling and not feel great.”

PRACTICE REPORT: Four Saints — DE Junior Galette (ankle), CB Corey White (knee), T Charles Brown (knee) and CB Elbert Mack (concussion) — did not participate in Wednesday’s practice.

Vitt said White, who missed last week’s game, is getting better quickly. That could be a key because Mack, his replacement in the nickel package, has to go through the concussion protocol before returning to the field.

Strief was the only player who was limited Wednesday.

ROSTER MOVES: With Strief still not at full strength and Brown likely to miss Sunday’s game, the Saints signed tackle Williams Robinson to the active roster and released wide receiver Greg Camarillo.

Robinson, who will likely back up starter Bryce Harris, was on the Saints’ practice squad for 10 weeks in 2011 and also was on the active roster for five games late in the season.

The Saints also signed tackle Jermarcus Hardrick to fill a spot on the practice squad after guard Harland Gunn signed with the Atlanta Falcons.

DREW DONATES: Saints quarterback Drew Brees and the Brees Dream Foundation is giving $1 million to help with the relief efforts from Superstorm Sandy in the northeast.

“Obviously, we know the type of devastation a hurricane like that can cause,” Brees said. “We can only imagine the devastation and the way it has changed people’s lives up there.

“I know they have a long road ahead of them. Certainly they can use all the help they can get.”