The first is a collective one for American society: Given the projected path for macroeconomic aggregates like consumption, output, and employment, are there alternative (but resource-feasible) paths that would be preferred? The second is a technical one for economists: Given a desired path, what policy choices (specifically, taxes and subsidies) would give rise to that desired path?
The answer to this second technical question is typically model-dependent. However, I suggest that a long-favored prescription of public finance economists – to lower the tax rate on physical investment – would give rise to higher output, consumption, capital, and employment in a wide range of models.