I haven't found any consistent reference to a particular battle wherein the battle plans were changed by a lower level officer on the ground at the last minute. Specifically, a major battle plan, not a 24 hour ancillary skirmish. Part of my hypothesis for the lack of good examples of this, as I'm sure it did happen, is that the managing generals, chief staff and white house took credit for adaptable and effective last minute planning and the lieutenants were silent.
Is this the case? Were in fact any major plans changed on the ground at the brink of battle by those closest to it?