Seems like Center and Running Back are question marks.
While I was disappointed over draft weekend about RB, that disappointment has subsided. I continue to believe the OL is more important. Other than Barry Sanders, what RB has been good enough to make up for a poor line. It is a passing league now, and running backs are mostly interchangeable. We've got a few options and the season hasn't started yet.
As for center, Skura blocked fairly well last year. I can't believe that the snapping problems will be an ongoing issue. That just takes practice, and I am sure they will make sure he puts in that time. The more I read about Eichenberg, the more excited I am about him. Unlike the guys we drafted last year, he seems is ready to start on Day 1 at right tackle. His flexibility to play guard is a bonus, and it allows us to start our five best players. Also, Dieter started 16 games at center for Wisconsin. I suspect they are going to work him there as a backup (and possible upgrade) for Skura. So, we have at least four OL who are flexible with their positions (Eichengerger, Dieter, Hunt, and Davis).
Jackson, Kindley, Skura, Hunt, Eichenberger, with Davis backing up several spots
Jackson, Kindley, Dieter, Davis, Hunt, with Eichenberger backing up several spots
Also, Hunter Long should help our running game as a two-way tight end. Of course the comparisons to Jason Witten are a bit premature, but the very fact that he is that kind of player bodes well for his potential. The offense is really looking up. There will be no more excuses for Tua -- he needs to make it happen this season.