You are forgetting Chris James, who may be new to the fielded O but isn't new to the team. You forget Deal and Taylor( a speedster if they don't RS him). Our WR's will be just as good if not better than last years.Peavy is back and can challenge for All-B1G. And Cephus has shown that he can be big time. Quite honestly the only question on O is at QB and how much he's improved from last year. Seriously, it's the D I'm worried most about and that is very little. We lose two excellent OLBs and probably our two best DBs from last season. That said, we have quality LBs coming out our nose and a very good transfer coming in at CB.
That said, I think our team would be embarrassed to get beat by the goofs. Getting beat by Iowa would be just knowing that two teams played hard and Iowa came out on top this time.