Donald Trump has very limited political experience; he has spent his entire life as a businessman. However, he won't find this transition too difficult. For starters, the American people have already given him a mandate/endorsement of his leadership "style." While it might not be political, per say, Americans clearly look with favor on his strategy of telling it like it is. Additionally, the transition will be made easier by the people he chooses to surround himself with, who will undoubtedly be primarily career politicians.
Luckily for Donald Trump, he lives in the United States of America, where anybody can run for President. He certainly isn't qualified to BE President, but as a multibillionaire he has one of the most important qualifications to be a viable candidate: access to immense amounts of money. Trump on the other hand shows no indication that he has done any studying, deep thinking, or political maturing in his life. All his pronouncemts are incredibly shallow and bombastic.
Donald Trump is unsuited for government : he is known to have a very short attention-span, never reads books, and is very thin-skinned. Running a country is a very different thing from running a family business. It is to be expected that his administration will actually be run by his subordinates.
Although I would like to think that the president-elect will be able to overcome his vast inexperience in politics, I don't believe he will be able to do so entirely. Being president of the United States is a hard job, and one that requires a lot of knowledge, not only about American politics, but world politics, and constitutional history. The best Trump can do is hire people to help him make decisions.