All else can be rented, bought wholesale or hired temporarily. The author feels that this increasingly decentralized corporation is an enterprise web. Power is not so much based on rank as on the ability to add value, which leads to leadership. Traditionally, US multinational were controlled from the US, and foreign subsidiaries served their interests. Most complex work was done in the US, which is not important to the global web.
Products are now international composites.
In high-volume corporations, work was performed in one place. Now the majority of American imports are parts of a larger system. With all the interweaving of production and value-added features between nations, they are coming to resemble each other. The author doesn't see foreign investment or the skewing of the corporate nationality to be a threat to Americans. These investments add to the world's total wealth.