It doesn't work. A post-industrial country is defined by de-industrialization, automation through information technology, and a rich financial system. The idea would be that wealth can be created through investment into other countries, or -maybe- wealth creation by exporting/selling very high-tech ideas.
Now, partly de-industrializing an economy is not a bad thing in itself. It makes an economy more robust against world market fluctuations. I.e., if prices fluctuate suddenly, an export driven country like Germany or Japan takes bigger hits than the UK, for example. Moreover, if more countries become wealthy, the hope would be that you can trade high-end goods between each other, and everyone will own SUVs and game stations instead of only a few nations being the sole consumers of wealth.
Unfortunately, the bigger picture still is that you can only make money by swapping goods between countries, and exporting high-tech ideas, or movies, don't weigh up against even exporting simple things in bulk, like grain. If more goods come in than goods come out, you're running a trade deficit, and this can only make a country poorer. In the end, this is what is happening to the US at the moment. The Chinese banks now hold 3 trillion dollars, prices of imported raw materials (like steel and oil) go up, and people in the US are trading their SUVs for smaller cars whereas Chinese are trading in riksjas for automobiles. Sure, US investors in China made some money by lending the money such that China could construct factories, but those factories now export some very expensive products, and China became a wealth creation machine against the US dollar.
Bottom line: De-industrialization is not a bad thing unless you give away all your manners of wealth creation. It distributes wealth amongst countries, which isn't necessarily a bad thing, and the de-industrialized country is always poorer (relative to others) by definition.