For companies planning to launch new initiatives during uncertain times, it’s important “to know from the start that the plan is wrong,” according to Ian MacMillan, Wharton professor of innovation and entrepreneurship and co-leader of Wharton Entrepreneurial Programs . Assumptions are what get most companies into trouble, MacMillan and co-author Rita Gunther McGrath, a professor at Columbia Business School, argue in their new book, Discovery-Driven Growth: A Breakthrough Process to Reduce Risk and Seize Opportunity. In an interview with Knowledge@Wharton, McGrath and MacMillan describe how firms tend to approach growth in ways that hurt them, and what they can do to make the most of new opportunities, even during the current downturn. It’s not failure that companies need to avoid, they say, but rather “failing expensively.” To read the entire article and view the video, click here.