Where do I start?
Libby was not indicted for leaking anything. He was indicted for lying to investigators and the Grand Jury, at least that is alleged. So if someone in the Administration said something to Woodward, it would not help Libby to point a finger at that person.
Now, one way this COULD help Libby is to show that a journalist like Woodward already knew about Plame and Wilson and the CIA earlier than anything the Prosecutor has in his indictment record against Libby. Which would not help Libby for the reason that someone else would have been leaking, (because remember Libby was not indicted for leaking), but for the reason that Libby's story that he first heard about all of this from a reporter, and not from someone in the Administration, would seem more credible.
Libby and Woodward did have an early conversation, and Woodward says he has told the authorities that he COULD have talked about Wilson's wife with Libby, although he does not remember whether he did or not.
But the biggest problem with your comment is that you imply that Libby is orchestrating something in order to deflect blame from himself, when in fact this is Bob Woodward making his own connection with the authorities and most certainly did not come from Scooter Libby.
Thanks for the explanation. I was not implying that Libby did it to pass the buck -- just so darned confused at this point that I was trying to make sense of it all.