Sloppy Play

[zap]

Since playing I have had a glaring lack in my game play. Its the command aspect. I want to get through a turn and don't take the time every time to keep my commanders with their units. soon after beginning my troops and commanders end up separated.  This is particularly so with larger scenarios.
I need discipline to get to a better level of  play. So to help me take this aspect more seriously I could use some reasons to convince my lazy side to invest the time. Like what are some of the effects/consequences of not keeping my units under their commander.