The company commander (CO) is the highest-ranking officer in the company, usually a C/CPT. He/she is in charge of leading the company and training the Executive Officer (XO) to take his place the following year. The CO is generally a senior in high school. The Executive Officer is a junior in high school that is training to be the CO the next year. He/she is in charge of running day-to-day operations and to make sure all of the leaders under his/her command are communicating.