Not the least of our concerns, but you're right if you're suggesting the entire offense is a concern. I think that's what makes it so difficult to fix. We don't have a great unit on the team. IMO, the units that are of greatest concern in order are:
1) Oline- If the oline continues to look like it did last week the Hawks could go winless in the B1G.
2) Quarterback- Like the oline, massive improvement needed over last week or this team won't win more than 3-4 games this year.
3) Receivers- This has to be the weakest WR group in the B1G. Not that Iowa leverages the passing game but if opponents don't see it as a threat the running game won't go anywhere either. Need KJ healthy and playing
4) Running backs- The jury is still out on this group. Anyone can run through a big hole, but I don't know that we have the kind of dynamic back that can make something out of nothing. Unless the oline can improve dramatically, who amongst this group can do that?
5) Tight end- Given the oline struggles, tight end blocking will be more important than ever. I don't know that either LaPorta or Lachey excels in that. Drops have been a problem as well.
This offense wasn't ready to play last week. That's on the coaches. The question is whether this group of players have the talent and coaching behind them to fix it, and fast. It all starts with the oline though because none of the rest matters until that group looks like a P5 unit out there.