Clinton spent way too much time trying to pull off a landslide and turn Georgia when she should've spent all her time in her "firewall" (i.e. what turned out to be the actual swing states of this election) defending her turf. Did her internal polling even bother doing a poll of Wisconsin?
i maintain that the Clintons were perfectly aware of the state of Michigan and PA but were not aware of the state of WI. If they did not think MI was in danger there would be no reason to sent obama bernie and pretty much everyone else there one day before the election.