While Ryan Grant flourished in the second half of the season, the Packers' run game frequently was an all-or-nothing affair. It will be up to right guard Jason Spitz, center Scott Wells and the winner of Colledge vs. Barbre to avoid repeats of last year's NFC title game, when the Packers ran the ball 14 times for just 28 yards.
The battle: Colledge has 30 NFL starts under his belt but may be better suited to play left tackle than left guard. Barbre was a workout warrior during the offseason, but it remains to be seen whether the former Division II star is ready for prime time.
The starters: Tackles Chad Clifton and Mark Tauscher are as reliable as the sunrise. But Clifton is 32 with bulky knees. If his play deteriorates, the offense will be in trouble. Also entering his ninth season is Tauscher, 31, though he seems to have plenty of tread left on his tires.
Backup tackles: Tony Moll's second season was doomed by neck stingers sustained during last year's training camp. He'll be challenged by rookie fifth-round pick Breno Giacomini. The Packers love his feistiness. Orrin Thompson, the brother of rookie defensive end Jeremy Thompson, also is in the mix. Regardless of how the battle at left guard shakes out, Colledge would fill in at left tackle should Clifton get injured.
Backup interior linemen: The Packers love rookie fourth-rounder Josh Sitton. He's tough, strong and surly, especially in the run game. Fourth-year pro Junius Coston can play center and guard. A long shot is undrafted free agent Brennen Carvalho.
Bill Huber writes for Packer Report. E-mail him at firstname.lastname@example.org