If I were in charge, I'd have the name put out in the press tomorrow by "sources high up in the WH" and have the official announcement on Tuesday. That gets the base charged up, the story to cover more time and deflect the Libby deal, as well as avoid the jokes about being a Halwoeen pick.
But that's just me.
Excellent 'strategery.' Would you be available to take over for Andy Card? ;-)
they will probably put
a name to pique the scuttlebutt
that will turn only out to be
another tease, another mystery.