Prioritize carrier density, transit time maps to your customer base, warehouse management system (WMS) capabilities, and labor availability. Also evaluate inbound routing (rail/truck), cross-dock capability, returns processing, and cost-to-serve metrics such as pick cost, storage rent, and last-mile rates.

By leveraging lower regional real estate and labor costs, consolidating inbound freight, and using multi-carrier optimization from a centrally located Midwest node, you can decrease transit days and freight spend. Match SLA requirements to a 3PL's automation and routing expertise to maintain service while lowering unit cost.

Look for a robust WMS with real-time inventory, multi-channel order orchestration, kitting and value-add processing, returns management, and carrier-integrated shipping. Automation for high-velocity SKUs and scalable labor models are essential to control costs as order volumes grow.

Request performance KPIs (OTIF, pick accuracy), carrier connectivity lists, references for similar clients, a site tour, and a proof-of-concept or pilot run. Confirm insurance, scalability of footprint, technology integration options (API/EDI), and contingency plans for seasonal surges or carrier disruptions.