Aye, just wanted to post that as well. Yesterday I had my full army in a battle and one of my soldiers was placed right next to the enemy and didn't stand a chance. All the others were 4-5 Tiles behind him as they should be, but there also sometimes the archers are in front whereas the heavy protected guards are in the back...
If they could get this system worked out, it would be an interesting twist for there to be a chance you're army is ambushed and it messes up your initial placement, or you find yourself surrounded.
Might not be fun though if you're army is annihilated because of this though.