Better McCain than Warner. Or Richardson. Those are the guys I'd be worrying about.
She doesn't have to pick up any southern states. She only has to hold the blue states. All that she has to do is add Evan Byah to the ticket and she gets Indiana and Ohio. She only needs one or the other. Bingo, she gets elected.
All she needs is Kerry's "red" states, plus one.
All she needs is to keep those states happy (not hard), convert ONE blue state (Ohio? PA? one was very close last time), and ignore the rest.
She doesn't need the Southern states. She can ignore those and all central states completely. CA, OR, and the northeast are a given for her.
Just one borderline "blue" state. That's all Hillary needs.