Brilliant stuff. It comes together with something I think Dan John once said, "your body knows what to do, you just have to shut up and let it."
I was saying this to a client this morning. When she deadlifts heavy on her own, often she'll fail on reps, step back from the bar, and so on. If I bark cues at her, "bar over the middle of the foot… crouch down over the bar, grasp it outside your shins… chest up! more!…. deep breath in, hold it… stand up! good! Now down!… okay, three deep breaths in and out…" then she does it smoothly and strongly.
I guess she was, "c onsciously focusing on the movements of a motor action [and] disrupt[ing] automatic motor control processes that regulate [her] coordinated movements."