The deadlift is an easy exercise to over-cue and otherwise overwhelm people. Think of it this way: If you have to use 42 different cues to get someone to perform an exercise, it's likely the wrong exercise for them.
That being said, when it comes to getting someone in the appropriate starting position we don't have to overcomplicate things. The two options in the video work well.
Tony shoots apart training myths like they were ducks and he was a starving fat man sitting in a pond with a rifle. Read about the "other side of the core," deadlifting mistakes, and the pencil test. (You gotta' take the pencil test.)