(Miss this week’s The Leadership Brief? This interview below was delivered to the inbox of Leadership Brief subscribers on Sunday morning, Oct. 4; to receive weekly emails of conversations with the world’s top CEOs and business decisionmakers, click here.) “We’re at our best when we’re in the eye of the cultural storm,” says Colleen DeCourcy, co-president and chief creative officer of Wieden+Kennedy (W+K), the agency behind some of the most striking advertising of the past three decades, including Nike’s “Just Do It” campaign.