The Jacksonville Jaguars offensive line was a mess during the 2012 season, with really only Eugene Monroe playing consistently well. Outside of Monroe, most of the players struggled during the season in quite a few of the games leading to players getting benched, put back in the game, then benched again and a seemingly revolving door at the left guard position.
The Phinsider did a nice write up on their offensive line with some visual aid to display how good and/or bad players were, so I thought I would steal their idea and do my own for the Jaguars offensive line. I didn't include players who played sparingly like Herb Taylor and Steve Vallos, but as you would expect they would have wound up in the red.
Pro Football Focus uses a positive and negative grading system, so if we look at the advanced stats of each player on the offensive line, we can kind of see how they performed week to week and if they had any kind of consistency. For the grading here, we will be using the overall grade from PFF, which combines both pass and run blocking. Some players have their overall grade completely tanked by being particularly bad in one area, but over the long run it evens out.
Legend: Great (1.0 or higher), Good (0.1-0.9), Bad (0- -0.9), Awful (-1.0 or lower)
As you can see, the chart doesn't really tell us much of what we don't already know. Eugene Monroe is far and away the Jaguars best offensive lineman and a franchise left tackle. Uche Nwaneri was good when he was healthy, but played much of the season injured and winding up with offseason surgery. The biggest surprise to me was probably how bad Brad Meester was, but his play has steadily declined the past two seasons.