Tax The Rich
The best, simplest thing Obama could do to make the economy work for everyone is make sure that the executive class doesn't have incentives to create bubbles and does need to keep their jobs for life, just like ordinary people. Once they do, they'll suddenly be much less likely to say "hey, this is really really risky, but who cares, I'll be rich and the government will pick up the tab."
Really, you need to read the whole thing to understand what he's talking about. Go, it's brief and to the point. You'll most likely find yourself nodding your head in agreement and wondering why we can't make this proposal a reality.