This is entirely branch and service dependent. You'll find plenty of 0-1s essentially filing paperwork in HHC, who have no subordinates reporting to them, acros

This is entirely branch and service dependent. You'll find plenty of 0-1s essentially filing paperwork in HHC, who have no subordinates reporting to them, across the Army. The overwhelming majority of 0-1s who are "line managers" will be in the Combat Arms branches (Infantry, Armor, Field Artillery, etc), and you'll still find 0-1s making slide decks for the Battalion Commander while they wait until it's their time for a Platoon.