To get one's ducks in a row essentially means to ensure all of the small details or elements are accounted for and in their proper positions before embarking on a new project. A defense attorney, for example, may spend much of his or her time making sure all of the evidence and witnesses are presented in a precise, effective order. A salesman may get all of his or her "ducks in a row" by rehearsing his sales presentation beforehand. When a person is fully prepared for any eventuality and has every element in place, he or she can indeed be said to have his or her ducks in a row.
Etymologically speaking, your guess as to the origins of this saying is about as good as any other. There are at least three plausible theories surrounding the origin of "get your ducks in a row," plus some others which, at least, put up an interesting argument. Some sources suggest the phrase was not even used in print until the late 1970s, although a magazine article from 1932 did suggest "getting our economic ducks in a row."
This is all I could find
25 mths ago