If I had to guess, I would say yes. Hillary could not destroy Obama with what she knew about him back in 2008 because he was The Messiah of Democrat Party. She'd have destroyed herself in the process. So she went with "if you can't beat 'em, join 'em" to bide time. Now that Obama is beginning to tarnish, she can start leaking what she knows.
I'm having second thoughts on that thought.
People used to say that Republicans fight by the Marquess of Queensberry Rules while Democrats fight by Fight Club rules.
Now I think that Republicans fight by Wii rules (a cartoon opponent) while Democrats throw real punches back.
Clinton probably thought that she was fighting a fair fight against Obama, while Obama was fighting Fight Club rules at her.
Clinton was rightfully ahead in the election until the caucuses (which she strategically ignored), and then lost with the fight over the super-delegates who turned on her.
That year, there was the whole controversay around the super-delegates, party insiders who could essentially throw the nomination one way or the other regardless of how the primary votes went. I was surprised that she didn't fight harder, given that the Clinton's owned the party and Obama had no outside organization to draw on, given what people said about his ability to put an administration together without knowing anybody personally.
-PJ