The US is out of demand. Workers are spent out. Thus, there's no need to increase output, because nobody has the money to buy it. The US has huge excess manufacturing capacity, thousands of malls which could handle more traffic ("there's always parking at Sears", a rather pathetic ad), and services which could handle more business. There's a glut of capital, plenty of available unemployed or underemployed workers, no…
One strategy for "growth" could be cashectomies via taxing windfall profits, idle assets, or just because.
Another could be changing from measuring consumption (GDP) and to something else, like happiness, life expectancy, or standard of living.