Okay, this is the post wherein we take the Bill Clinton playbook and use it against him. ;-) [Why? Because democratic voters will get the best of both worlds, if the competition among candidates improves them and hones their ability to take on the GOP machine.]
Barack now pretty much owns the change theme, despite the copy cats in both parties, because of his sheer oratory skills and, should it continue, his ability to turn out the vote in new ways (his rhetoric has done what I hoped earlier, i.e. start to capture people's imaginations). These gains are consolidated (I think). He can reinforce this first part and move on to part two of the change message, leaving the copy cats behind (I won't lay that out, however ... you know, I can't pretend to run the whole country from a blog. LOL@self).
Following Bill's outline (Big Picture):
1. I can offer you the same change as Clinton [match the competition]
2. I can do it in better ways, and here's how [surpass the competition]
For part three, i.e. here's something you don't know about Clinton [raise the bar on the competition]
3. These are some of the times where she has failed to lead, without going negative - we know the Clinton's have lacked political courage from time-to-time, not completely related to the barking GOP dogs ... [there might be some other ways, but that's what I'm thinking now, first draft].
Tactics:
He needs a message to assure the older folks, especially older women, that he's got substance and that they can be comfortable with him.
Q.E.D.
p.s. Time is not on his side. People don't know him, despite everything. His road is still steeper than hers. But, one would be a fool to bet against a David Geffen pick outright.