In order to shape a powerful mission and to take meaningful action, at root is grappling with our views of the role of the learner, the teacher, the leader, and the school.  Likely there is a range of beliefs in play at your setting.  What pedagogy is driving your choices now?  Might you cultivate a look at a new kind of learner? A new kind of teacher? A contemporary school learning environment?  How might we involve our education community into this investigation?