Mercy, your important comment "When given the privilege to lead in an informal setting, teachers can initiate ideas and projects to address their students' needs and opportunities as they arise" speaks directly to an outcome for informal leaders to be comfortable with creative ideas and innovative thinking. As such, positional leaders have the leadership vision to engage informal teacher leaders to sustain a positive school culture through shared or distributive decision making. (PDF) Distributed Leadership in Education: A Systematic Review of its Role in Fostering Innovative Practices and Enhancing School Performance (researchgate.net)