Carl
Cheesehead
I couldn't disagree with this more. In general, an NFL team is only as good as its backups. It is rare for teams to make it through a season mostly unscathed from injury. Some of those backups fighting for jobs in all of the preseason games will likely be starters at some point during the season. The Packers, as discussed ad nausea, have suffered a higher number of injuries than average recently. As for the offensive line and OT specifically, here is a good quote from a Don Barclay article:
http://cheeseheadtv.com/blog/minus-don-barclay-packers-likely-to-need-derek-sherrod-in-2014
Probability says that we were going to need our primary OL backup at some point this season. This isn't a panic button moment, but it certainly hurts.
I realize it's rare that a team will make it through the season without injuries. In my opinion though, if those injuries don't include key guys like Rodgers, Matthews, Jordy, etc. or if injuries to key guys only cause them to miss a game or two, this team will be okay. The drop off from our best guys to their back ups is much greater than the drop off from Barclay and the next man up.
The Super Bowl team is a great example. They had a lot of injuries, including a starter on the o-line, but none of them were to Rodgers, Woodson, Matthews, Jennings, Collins, or any of the most important guys to the team.