Thomas Luddy and Susan Bao, who manage large cap core mandates for J.P. Morgan Asset Management, have an enviable track record. Over 10 years, J.P. Morgan's U.S. Equity Fund has returned almost 1.5 percent more than its benchmark. They make it sound simple, but the truth is they're picking stocks in one of the most competitive and efficient asset classes out there, earning them a place in this year's Money Masters.