Difficult markets call for tough decisions. On Consuelo Mack WealthTrack this week a veteran portfolio manager discusses his investment approach. Wally Weitz of the Weitz Value funds weighs in on his Warren Buffet approach to investing, which is going through a rough patch this year. Scott Budde heads TIAA-CREF's Global Social and Community Investing Department and oversees its socially screened funds. Plus the CEO of Barclays huge exchange-traded funds business, Lee Kranefuss will update us on developments in that booming business. Distributed by Tubemogul.