Taxation even with representation

I congratulate people who write articles like this one recently published in Forbes. I think too often the focus is placed on the for whom and how much of government spending, without asking whether it should be spent in the first place. The author makes a good argument for limited federal government, stating that the constitution specifically states in the 10th amendment that "the powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people." Much of the spending on the Federal level would be better left to the states, and the framers of the constitution intended for the Federal government to be constrained to certain specific tasks. Governance on a state-to-state basis would allow people to "vote with their feet" and live in a state that most coincides with their ideals. Now isn't the time to get into a big federalism debate, but the way I see it, we have already passed the point where economies of scale favor centralized administration. Is it possible to limit the size of the Federal government and govern on a more efficient state level? I'm not sure how to do that, but I agree with the author when he wrote, "we should demand that they cease talking of reduced federal spending and taxes in favor of a real discussion of the proper role of the federal government itself."