It isn't easy for a legacy business to grow, but this company's management is confidently predicting higher top- and bottom-line numbers.Confident comments from a top executive at Mondelēz International (MDLZ 4.18%) about the company's immediate future drove up its share price on Wednesday. The food company's stock rose by more than 4% largely as a result, on a day when the S&P 500 index sagged marginally by 0.2%.Unwrapping fresh growthThe individual behind the rosy pronouncements was Mondelēz's chief finan ...