It seemed a natural move to plug Chris Williams at left guard, since Roberto Garza is scheduled for a knee scope that will sideline him this Sunday.
Williams, who has missed the last three games, was projected during the offseason as the left tackle of the future. The 14th overall pick in the 2008 NFL draft, Williams has bounced around, and Bears coach Lovie Smith wanted him to focus on one position. But the Bears are believed to be tweaking their plan. In the name of continuity -- or what little they can cobble together -- the Bears want to keep Frank Omiyale at left tackle. It's a position Omiyale is comfortable at.
Williams is athletic, but he's struggled with pass protection. Swinging inside takes some pressure off of him, so he's not in as many one-on-one situations with a player who oftentimes is the opposing team's top pass rusher.
The Bears are looking for some continuity on the offensive line, and this group (Omiyale at left tackle, Williams at left guard, Olin Kreutz at center, Edwin Williams at right guard and J'Marcus Webb at right tackle) will get a chance to keep their jobs.