MINNEAPOLIS — While Supervalu has completed its overhaul of its value proposition across its Jewel-Osco banner, the grocer will be analyzing the impact before replicating the price repositioning across its entire chain, the Minnesota-based supermarket chain announced Thursday morning. "We continue to have a market-leading price position amongst conventional food retailers in three markets," Wayne Sales, Supervalu president, CEO and chairman told analysts during the second-quarter conference call.