The Steelers offensive line will have a different look in 2013, not just in personnel but also in execution. At least, that is the intent of offensive coordinator Todd Haley and the team's new offensive line coach, Jack Bicknell Jr. And for good reason. If the Steelers are interested in running the ball more effectively -- something that didn't happen in 2012 -- they might have to do more than change the people who are blocking up front. They might have to change how they are blocking, too. And that also would mean finding the right type of running back to fit the schemes that are being employed. Despite a change in roster makeup to emphasize running the ball better, the Steelers went the other way last season, averaging just 3.7 yards per carry on the ground after averaging 4.4 yards per pop with basically the same personnel in 2011. Offensive lines are sometimes graded on the protection they afford their quarterback, and, at times, that was much better in 2012 than it has been, especially in two of the games when Charlie Batch had to replace Ben Roethlisberger.