Couple of points....
The Hildebeest cut herself a deal to be SecState in exchange for stepping aside and allowing Obama to be nominated without a fight at the Convention.
Second, Joe Biden (Joe Biden!!) was added to the ticket because he was supposed to be Obama's best Foreign Policy advisor because he had been a member of the Senate Foreign Relations Committee for decades, even though guys like Bob Gates say Biden has been wrong on every foreign policy matter for the last forty years...