What separated du Picq's belief from this new idea was that while du Picq accounted for differences in enemy positions and circumstances in the art of maneuver, the offensive à outrance made no such distinction, making the offensive victorious no matter how it is employed.
The key difference between du Picq's strategy and this new idea was that du Picq accounted for variations in enemy positions and circumstances when planning an attack, while the offensive à outrance did not make these considerations, resulting in victory regardless of how it was implemented.