SLS Officers Training Video A clip from the SLS Officers Training. In the case that “my principal won’t let us do anything”… What are the keys to good administrative support? One-on-one with SLS President from Walled Lake Northern HSA clip from the SLS Officers Training. In the case that “my principal won’t let us do anything”… What are the keys to good administrative support?Posted by Student Leadership Services on Thursday, August 6, 2020