Boards of directors play "a critical role in setting the appropriate tone at the top, are expected to be guardians of the company's assets, and are relied upon by both shareholders and the capital market," Securities and Exchange Commission member Luis Aguilar told those attending the 12th Annual Boardroom Summit and Peer Exchange on Oct. 14. In a comprehensive speech, Aguilar also touched on shareholder engagement, directors' oversight of crisis and risk management, and boards as effective stewards of the corporate enterprise. Read the entire speech here.