But, on to Drezner.
The thing is -- and this is kind of important -- governments are not corporations. I cannot stress this enough. There's the obvious point that in democracies, legislatures tend to impose a more powerful constraint than shareholders, making it that much harder for leaders to execute the policies they think will be the most efficient.
There's also the deeper point that it's a lot harder for governments to be "unsentimental" when it comes to the provision of public services. It's a lot harder for states to eliminate the functions that are less efficient. Frequently, demand for government services emerges because of the perception that the private sector has fallen down on the job in that area. This means that the government has been tasked with doing the things that are difficult and unprofitable to do. It is precisely because these government outputs are often so hard to measure that Newt Gingrich's claims about Six Sigma sound pretty laughable. Even libertarians who want the government to reduce its operations drastically will acknowledge the political risks and costs of trying to execute this plan.
To be fair, there are some policy dimensions where this analogy holds up better. Cohen implicitly argues that America's willingness to jettison costly and inefficient foreign ventures -- cough, Iraq, cough -- is an example of this kind of turnaround strategy. Fair enough. Even on foreign policy, however, it's hard to execute this kind of ruthless efficiency. Israel is prosperous enough to not need the $3 billion it gets in U.S. aid. Good luck to anyone trying to cut that. Africa is not a vital strategic areas of interest for the United States, but I suspect AFRICOM isn't going anywhere. I've been a big fan of getting the United States out of Central Asia, but critics make a fair point when they observe that the last time the United States tried this gambit, Al Qaeda took advantage of it.
There's been a lot of bragging in the 2012 primary about candidates that have "real world" business experience, and how that translates into an effective ability to govern. That logic is horses**t. Being president is a fundamentally different job than being a CEO -- because countries are not corporations.