Over the past year, Pepsi acquired full ownership of the companies that make Sabra and Obela products (emphasis on Mediterranean-inspired dips and spreads), Siete Foods (Mexican-American food products such as sauces, seasonings, and snacks), and prebiotic and juice brand Poppi -- which is perhaps the biggest portfolio diversification for Pepsi in years.To overcome this period of sluggish growth, Pepsi is working on a portfolio transformation and cost reductions to improve its operations, especially in its s ...