The directors of Global Investment Company made a "bad" business decision in 2006, by relying on the advice of financial experts and lawyers and accountants, who all thought the real estate market would continue to rise for years and years; and thus the directors invested heavily in mortgage backed securities instead of conservative gold and gold stocks and Treasury bonds. Of course, when the recession came, Global Investment Company lost a great deal of money for its shareholder investors. The shareholders then sued the directors for negligence. The directors are best protected legally by: