Why Wes Clark for Oklahoma?
He is not a professional politician.
He is independent-minded and moderate (ie electable).
Has experience running huge organizations (the US Army and NATO)
Hates war - especially unnecessary war -
But served his country in the military.
Has diplomatic experience.
Seems to care.
Good communicator - in three languages.
He's whip-smart (Rhodes scholar).
Bush can't accuse Clark of being soft on security.
No one else meets all these criteria.
Clark, unlike his rivals, has no long history of votes and campaign contributions from special interests for which the Republicans can assail him.
Why would the Democrats put someone else up against Bush when they have a candidate like Wesley Clark? Unless they are dead set on losing.