I was a battalion S3 in the 82d Abn DivArty and saw battery commanders change frequently. I even had to change out after 12 months although I was getting good at my job. If the unit is lucky, it gets a good commander for the next 18 mos. If not, they have to wait 18 mos. until they can get rid of the guy. The soldiers stay, as well.
Officers are the wild card.
The limitations on airlift wouldn't support a massive buildup of logistics or combat power. Staying together as a unit for three years makes this possible. The principles call for open, complete, and truthful communication both up and down the chain of command. The CSA recommends that leaders empower their subordinates by granting them discretion commensurate with their competence, involving them in decision-making, and relying on their ability to function autonomously within the boundaries of their missions. I tried to bring it to the 82d Abn Div when I was assigned there as an S3 with partial success.