This is a military, US Marine Corps, essay. The thesis for this is "Preparing the leadership team to overcome the challenges presented by complex environments and threats includes the role the Marine Staff Non-Commissioned Officer (SNCO) takes in developing their Officer as a teacher in combat and service training, as an example of leadership, and as an experienced and trusted advisor." What is the role of a Marine SNCO in the development of young officers so the leadership team is prepared to overcome the challenges presented by complex environments and threats?