Your Corps Commanders are doing exactly what they are supposed to do. Rounding everybody up for deployment, intercepting routing units, checking on lines, observing the enemy etc.. Take a look at Ney at Waterloo he was everywhere. If we start moving them independantly the units under his command will suffer, we don't have the time to micromanage the Corps commanders function. It may however be feasable if we get a fully functioning Divisional Command but I don't think I'll be moving mine around, I've already got to much to worry about on the battlfield.