This article is on to something:
In the United Kingdom and many other countries with a parliamentary system there is a distinction between the head of state and the head of the government. In some countries such as Denmark, Spain and the United Kingdom the monarch either a King or Queen is considered the head of state and with that office goes all the trappings of royalty. The mundane responsibility of running the government falls to the elected Parliament and their chosen Prime Minister.
Of the world's major democracies only the United States merges both functions into the office of President.
It appears that Barack Obama views himself as the head of state only. As such he cannot be bothered with the day to day responsibility of governance. He is, in his narcissistic world, above all that; thus he delegates the writing of the Stimulus, health care and other major bills to Nancy Pelosi, puts off any decisions on Iran and Afghanistan, appoints czars with power to spend and set policy and prefers to spend his time on television speaking to the huddled masses.