It's a good starting point
MSU damn near loses there entire defense for a team totally reliant on their D, and they're 6? Makes sense.
It is helpful to be ranked just in case Iowa goes on a 2009 style run at the beginning of the season...we will zoom up the rankings, and just in case we are undefeated at the end, would give us some media love, which cannot hurt in the committee room.
Anytime you start out ranked ahead of Florida, USC, Michigan and Nebraska it's a good thing.