In late August, CEVA Logistics secured a massive contract with H.J. Heinz Co. to manage the food company’s global ocean freight transportation for five years. The deal is noteworthy because of the contract’s length, compared to typical freight forwarding contracts of one to three years, or less, and the volume — 60,000 TEUs per year — placed under the exclusive control of a single logistics provider. Many shippers are consolidating the number of third-party logistics providers used...