There are many jobs that cadets can hold in the Corps. The lowest level of leadership is the squad leader. They are usually in charge of 4-14 cadets, depending on the size the unit allows. After that would be the platoon sergeant (PSG). They are in charge of the welfare of their cadets, as well as running day to day platoon operations. PSGs are also in charge of teaching their new platoon leaders (usually newly commissioned lieutenants) how platoons work, and to be a liaison between the platoon leader, the first sergeant, and the squad leaders. Platoon leaders are the first level of officer leadership. Usually Lieutenants, but commonly warrant officers or NCOs if the unit strength is low. Platoon leaders are responsible for leading the platoon and supervising the squad leaders and platoon sergeant. After that positions are as follows: