So, what is essential to becoming a successful CoS? The Chief of Staff (CoS) is a “key player” in the strategic management of global and Brazilian companies. Originally from the U.S. government, the role is now present in more than 40% of leading private sector organizations and is considered the “fifth element” of modern leadership.
To stand out, the CoS must develop these essential skills:
- Leadership: inspire teams even without direct authority.
- Strategic communication: simplify complex information and align executives.
- Analytical thinking: interpret data, identify trends, and anticipate risks.
- Project management: coordinate initiatives from planning to execution.
- Interpersonal influence: build strong relationships and mediate conflicts.
- Adaptability: respond quickly in uncertain and high-pressure scenarios.
According to Carolina Laboissiere, CSA’s regional director in Brazil, investing in mentorship, development programs, and hands-on experiences accelerates the evolution of a CoS, making them an indispensable strategic ally to senior leadership.


