Bottom line, it IS Blanco's fault. She is the chief executive of that state and she is a miserable failure.
Her name is very appropriate. The woman's mind is blank.
She had to provide a place to put all the evacuees. She failed to do so. So yes, this ultimately is the fault of Blanko for not using all state and federal resources available. I add federal to the mix since President Bush declared the state a disaster area before the storm made landfall. I hope they nail her fat incompetent a$$ to the wall in this.
Following your logic, one could say Bush is responsible.