While Buffalo has struggled to find success on the field for a variety of reasons over the last 20 years, their lack of continuity along the offensive line probably played a large role. To get an idea of the changes that have taken place on a year-by-year basis, here's a look at Buffalo's starting offensive lines over the last 20 seasons.
|Cordy Glenn||Richie Incognito||Eric Wood||John Miller||Seantrel Henderson|
|2014||Glenn||Kraig Urbik||Wood||Erik Pears||Henderson|
|2012||Glenn||Andy Levitre||Wood||Urbik||Chris Hairston/Pears|
|2010||Demetress Bell||Levitre||Geoff Hangartner||Wood||Mansfield Wrotto/Cornell Green|
|2008||Jason Peters||Derrick Dockery||Duke Preston||Brad Butler||Langston Walker|
|2006||Peters||Mike Gandy||Fowler||Chris Villarrial/Preston||Terrance Pennington|
|2005||Gandy||Bennie Anderson||Trey Teague||Villarrial||Peters|
|2004||Jonas Jennings||Ross Tucker||Teague||Villarrial||Mike Williams|
|2003||Jennings||Ruben Brown||Teague||Mike Pucillo||Williams|
|2001||John Fina||Brown||Bill Conaty||Corey Hulsey||Jennings|
|2000||Fina||Brown||Jerry Ostroski||Jamie Nails||Marcus Spriggs|
|1999||Fina||Brown||Ostroski||Dusty Zeigler||Robert Hicks|
|1996||Fina||Brown||Kent Hull||Ostroski||Glenn Parker|
Information provided from Pro Football Reference
The right side of the line has experienced the most change over this time span. Not even counting years where Buffalo has split starters at a position, right guard and right tackle each have had 14 different starters. This is significantly higher than the amount of centers (9), left guards (9), and left tackles (6).
How long the current starting five will be together is up in the air. Glenn is only under contract for the 2016 season, Miller will have to take the next step at right guard, and the right tackle position doesn't have a clear cut starter. That said, although the right tackle spot isn't set in stone in 2016, it's encouraging to see Buffalo's line intact. The unit played a large role in helping the Bills finish first in rushing in 2015 and they'll be expected to do the same in 2016.