This judgment is way over the top and unfortunately such extreme statements help discredit conservatives just as much as the nonsense written in NYTimes editorials discredits progressives.
Obama is incompetent, that much is clear. But I think Hillary Clinton and Robert Gates have done their jobs very capably. Defence and foreign policy are arguably among the most important positions.
The problem is that Obama is completely inexperienced and to make matters worse, he is quite ideological and supremely confident. Those three make for a deadly and very heady cocktail. The healthcare law was hardly handled in an inept fashion - and that precisely was the problem! It was passed shrewdly and perniciously despite widespread opposition.