Nuveen Chief Market Strategist: Stay defensive in equity portfolios

With earnings season kicking off next week, most analysts don't have high expectations, many forecasting negative earnings growth. However, Nuveen Chief Investment Strategist Brian Nick believes third quarter earnings growth should eke out a positive year-over-year number. Yahoo FInance's Adam Shapiro, Brian Cheung and Pras Subramanian discuss with Nuveen Chief Investment Strategist Brian Nick.