As OP notes, the DL will likely be more than serviceable. With a talented back-7 to complement this DL, the defense should manage respectable middle-of-the-pack (4-7 place) B10 standings. The D will NOT however be good enough to carry Iowa to victories, equal parts of the load must be shouldered by the Offense and STs.
On offense, Vandy has enough talent around him (as can be surmised, I am not too worried about the RB spot) to sleepwalk to 7-wins. But every year, there are a 1-3 games where the QB and FG-kicker can manufacture wins based on 1-2 clutch plays. If Vandenberg and Meyer deliver, I expect the unexpected (10+ wins).
So individual keys: Vandy, Meyer
Team keys: balanced load sharing by O, D, ST (yet none have to be superlative)
On offense, Vandy has enough talent around him (as can be surmised, I am not too worried about the RB spot) to sleepwalk to 7-wins. But every year, there are a 1-3 games where the QB and FG-kicker can manufacture wins based on 1-2 clutch plays. If Vandenberg and Meyer deliver, I expect the unexpected (10+ wins).
So individual keys: Vandy, Meyer
Team keys: balanced load sharing by O, D, ST (yet none have to be superlative)