Battle plans could suck if you hand over to the AI control of 20 or 30 Divisions and the AI makes a right old mess of moving them and while its clear you can make a very detailed plan and effectively have manual control the problem I have..........
Is trying to grasp the concept behind game play that involves the creation of what are in effect not the actual movements of your units, it is only later after you have started to execute your plan that the real interaction between the player and the enemy AI will take place. So for example you could create an extremely detailed plan and never even penetrate the enemies front line and while that is an unlikely occurrence it does illustrate the problem that all the detail you have poured into making the plan could be a waste of time.
Of course this may mimic real life but its very unusual for a game to have a player invest time in game play that has not happened yet and that may never happen, very odd still trying to grasp the idea.
I dont intend to "just hand over 20-30 divisions to the AI" and making a good battleplan for a large offensive doesnt (from what we have seen so far) take any more time, than giving orders to units in HoI3, at the start of major offensive.
I plan to interfere with unit orders, if i think there is a good reason for it, but I generally like reallistic features like battleplans.
If you make a plan for an offensive and your units dont get past initial frontline, you planned it poorly.