There has been quite a bit of speculation and a number of questions on the forum regarding the apparent impossibility to move back (in an orderly manner) a BDE committed in combat.
Well, it seems, than once you are "face to face" with the enemy (adjescent hexes) the TC mechanics leaves you with the sole option of going to column formation and moving back (or so) just about one hex. That, if you are lucky enough for your BDE to have super heroic morale and a ton of MPs. Now, although the general approach of the developers seems sound (as long as you agree that actual company/regiment-level combat during the Civil War period was more of a slugfest than anything else - which I tend to agree with, by the way), there, clearly, were cases during many engagements where a unit (regiment or BDE size) would "step back" while holding the line and facing. The first example (historically) would probably come from the Union at the later stages of the First Bull Run / Manassas (Sherman's BDE and a few others).
I would like to present you with the following idea:
What if it actually were possible to have an engaged infantry BDE move back in TC, retaining formation and facing, but at a cost of ALL movement points (whatever the actual pool), and a percentage of morale and/or men?
This could help in fighting a delaying action engagements (just about impossible as it is). A loss of morale would simulate the general... well... loss of morale of the withdrawing troops, while lost numbers would cover for the inevitable disorganisation and disengagement cassualities (you know: don't you ever turn your back on those tricky Yankies!!). The magnitude of both could be a function of the unit's morale (current and possibly also max) and, should the Gods of Random cast theis dice unfavourably, the attempt would fali, and possibly result in actual disorganisation, with or without displacement.
Just a though.