If Obama wins, he cannot name Hillary as his VP. She would have him assassinated; he knows that, she knows that, and everyone around the both of them knows that. The other way around is possible and not something I look forward to seeing.
So then you would have Obama as POTUS, and Hillary as Senate Majority Leader.
UNGGGH!
The party hacks and superdelegates who were committed to Hildy first will make it a condition of supporting Obama as nominee in a brokered convention.
He won’t want to do it, but he will.