The media would love for the narrative to run towards Obama's camp hitting clinton on non-policy issues such as scandals from Bill Clinton's era.
Obviously Plouffe and the Obama camp are too smart to fall for that obvious trap, and have stated they won't go there. But I think they should, in tone at least, be taking this even further...
Objective observers agree that the superdelegates are not going to over-turn Obama's lead, and even if they did there's not too much Obama could do to prevent them from making that grave mistake.
Instead, what matters is how many Clinton supports Obama makes peace with and impresses before the curtain closes and he's declared the winner. He's not going to move the needle that decisively, or capture a majority of the votes in "her" states, so that's an unnecessary goal to strive for.
Obama at this point needs to be the statesman, the conciliator, the peacemaker who cheers on Hillary's historic run and spirit. He could turn the other cheek, and be simultaneously making it clear that the antics of the next few months are not nearly as important to him as unifying the democratic party.
Stressing the democratic party's growth, and showing respect for the voters making their voices heard, positions him as the necessary unifier who can take into consideration and recognize the importance of these voters. Recognize the divide, and speak to it not as a current choice, but as a long term community whose values he will share in the fall.
I'm not suggesting that Obama isn't already reaching out or looking towards John McCain, but I thought it worth putting out there that at this point he should just sit back, relax, and praise the process and the voters, whatever the result. The more the Obama camp avoids confrontational frames, the more he looks like a natural unifier in spite of the split voices. He's gonna win it either way, so he'd best win it in good form.