The provided sources explain "leading from the middle," a leadership style where individuals influence without formal authority, emphasizing its growing importance in modern organizations across corporate, startup, and nonprofit sectors. The text outlines key principles such as building trust, aligning on common goals, and using persuasion over command, alongside essential skills like communication, emotional intelligence, and strategic thinking. It offers real-world examples of individuals driving change from non-executive roles and suggests how AI tools can support the development of these mid-level leaders. Finally, the sources incorporate organizational psychology insights to underscore the power of informal influence, networks, and various forms of "power bases" beyond official titles.