Jacob Weisberg says Obama needs to tie together his economic ideas with something catchy and memorable. He's right.

Clinton pulled this off in 1996. He said we need to "build a bridge to the 21st century." This reinforced many themes:

1) Invest in infrastructure (the "bridge" image)
2) Look to the future (the world is changing and we need to keep up)
3) Psst, oh, by the way, the other guy is old.


How about a related theme, something like "Build an economy for the 21st century?"

This can serve similar purposes:

1) We're "building" something, i.e. getting the country active again after some recent scares. (An echo of the New Deal.)
2) Drills the word "economy" into people's heads and owns it.
3) Oh, by the way, the other guy is old: If this election hinges on who better understands the challenges of the 21st century, Obama will have a big advantage: He's young, and doesn't look like your average politician. Obama has successfully ridden the current of history to the nomination. If he can be "on the side of history", as Bill Clinton acutely put it in his convention speech of a year ago, he will be well-positioned to win the election.