Suppose that were true. (It isn't, but let's play along).
Also suppose that Ms. Palin did NOT hold a gun to anyone's head and force McCain to pick her.
Therefore, if she was such a drag on the campaign, it's the fault of whoever in the campaign picked her.
Therefore, it's not all here fault.
This isn't rocket surgery, people.
Now that's a new one,....how is it done?