Stu said:
Also, when the Death Star is being attacked, nobody on it is saying "hey, what's going on here? What are they trying to do? They can't hurt us with such a small number of small fighters? Have they found some hidden weakness that we don't know about? What are these guys up to?"
Sure they are. An officer even tries to tell Tarkin that they've "studied their attack patter and there IS a danger..." but Tarkin ain't havin' it.