Yes we need to be concerned to a degree. It's not as bad as many think, but it's not as good as some think either.
Offense, not too concerned. Also depends on if Zeke will play. Zeke can counteract the OL at LG. But I am more concerned with the penalties from Collins at RT. If Zeke does not play, then this is where Linehan needs to be creative a bit more. I am fine with DMC / Morris back there, but Morris in pass protection is not as good. But they can pull to help blocking at LG if needed depending on the defensive fronts.
Defense, this is the concern, we don't know how the secondary will e at all, with the vet players as well as the rookies. So far, not good. The suspensions and injury to TCraw and such will have the DL in a state of flux until Moore then Irving return. However, will some player emerge in the meantime, as well when all are back.
LB's, not good, this is why they needed to draft one or two, instead of the 2 DT's in the 7th. Hitchens out, Jaylon still getting to 100%, looming suspension from Wilson. Durant hasn't played yet, Nzeocha, what do we have in him, keep waiting so far. Wilber, seems lost a good part of the time to me.
Will need to score a lot of points, as this d can't be trusted at this point. As usual. Wait to see in a few players step up. But we been saying this every year for how long now. I been saying this D will be better than many think. But now, I am taking a step back to hoping it plays better than most think.
But heck, tomorrow I may feel different...LOL...