The team review for the Cleveland Browns from the 2007 Pro Football Prospectus looks at whether continuity on the offensive line results in improved line play. Jason McKinley's analysis over the last seven seasons showed that the best offensive lines were the ones with the most continuity, but he wonders whether all it proves is the healthiest offensive lines are the best. This analysis is hardly definitive, but it does point out that it doesn't hurt to have the same five guys play alongside each other on the offensive line each week.
We were spoiled by the consistent and quality play of the Packers starting offensive lineman from 2000 through 2004. In 2003, LT Chad Clifton came back from a vicious hit from DT Warren Sapp and RT Mark Tauscher from a knee injury that wiped out most of their 2002 seasons, but otherwise the line was remarkable stable. C Mike Flanagan lost most of the 2004 season to injury too. Although 2005 was a mess on the offensive line, the same players who started most of the games in 2006 are returning at the same positions as starters in 2007. All signs point to a very good offensive line in 2007 and the continuity from 2006 to 2007 is just another reason for optimism.