This is OO/Conservative method:
1) Decide what conclusion you want to arrive at. This will often be based on predicting what the Jewish ethical response must be in a world that has changed so significantly from the early legal texts of Judaism, that the modern author is given much leeway.
4) Find a medrash as a springboard to show how quintessentially Jewish, how much in the spirit of Jewish law your own conclusion is.
5) Accept your original argument.