Answer extracted from the The FreightFA Brief Podcast — listen to the full episode below.
When does carrier diversification beyond a primary carrier like UPS actually create financial leverage versus added operational complexity?
Carrier diversification creates leverage by reducing single-carrier dependency and protecting against catastrophic disruptions like cyber attacks or air disasters. One shipper spending $5 million with UPS saved $1.6 million annually—a 50% reduction—by moving just 30% of low-weight shipment volume to an alternative carrier offering 33% better rates.
The Financial Case: Real Numbers from the Field
The math becomes compelling at scale. A company heavily concentrated with one carrier faces exposure on two fronts: negotiating leverage evaporates when a carrier knows you have nowhere else to go, and operational risk skyrockets if that single network fails. As Oliver Najumi explains in the episode, moving even a modest portion of volume to a tested alternative immediately shifts the power dynamic in rate negotiations with your primary carrier.
The $5 million UPS example is not an outlier. In this case, 30% of volume—specifically low-weight shipments that command higher per-unit margins from UPS—was redirected to an alternative carrier. The result was not just the 33% savings from the new carrier; the primary carrier, facing the threat of losing that business, also became more willing to compete. The combined effect: $1.6 million in annual savings, or 50% of the original UPS spend for the diverted portion.
This works because low-weight shipments are the margin sink for traditional carriers. UPS and FedEx optimize for their own network, not for your bottom line. When you remove that unprofitable-for-you volume to a specialized or regional carrier, you stop subsidizing their inefficiency and start capturing the spread.
When Complexity Becomes a False Worry
Many CFOs and supply chain leaders balk at diversification, citing integration complexity, billing fragmentation, and operational overhead. The fear is real—but often overstated. A point detailed in this podcast is that the risk is manageable if you approach it methodically rather than attempting a sudden wholesale shift.
The tested approach: start with a small pilot allocation—perhaps 5-10% of targeted volume—to a secondary carrier. Use this phase to validate three critical elements: billing accuracy, system integration with your TMS or ERP, and service quality consistency. Most integration issues surface immediately and prove minor: API connectivity, rate sheet formatting, or shipper account setup.
Once the small tranche runs cleanly for 30-60 days, you increase the allocation incrementally. This removes the binary risk: you are not betting the entire operation on a new partner. You remain free to adjust course, pull back, or add additional carriers if the data shows it makes sense. Operational complexity becomes a managed variable, not a blocker.
"There is no Bloomberg for freight, so it teaches you to be forensic in how you audit shipping operations."
Oliver Najumi — Executive Vice President, ICC Logistics. With more than a decade at ICC since April 2014, Najumi works directly with CFOs and supply chain leaders to uncover hidden cost and service gaps through data-driven freight auditing. He describes himself as a data-first practitioner leveraging ICC's 50-year legacy as an impartial extension of logistics teams, a role founded by Tony Muzio in 1975 to solve the very cost-control challenges that remain unsolved in most supply chains today.
The deeper reason diversification works is psychological as much as operational. When a shipper has proven they will move volume elsewhere, carrier behavior shifts immediately. Rate cards become more flexible, service commitments more concrete, and exceptions more readily granted. The carrier no longer treats you as a captive customer; they treat you as a partner worth keeping.
Discussed at length in the full episode is how this leverage advantage compounds over time. Year one savings pay for the integration effort. By year two, the competitive pressure you have created keeps margins intact, and you have the optionality to add a third or fourth carrier if that carrier's pricing or service slips. You are no longer trapped.
The Implementation Blueprint
Pilot phase: Start small and measure. Allocate 5-10% of volume to a secondary carrier—ideally one that specializes in your shipment profile (weight, geography, speed). Validate billing, check for hidden accessorials, confirm on-time performance against SLA, and ensure your systems talk cleanly.
Validation phase: Run for 30-60 days. Collect data on actual costs, service metrics, and system issues. Involve your finance, operations, and IT teams to surface any friction. Most problems are solvable and small.
Scale phase: Increase allocation step by step. If the pilot succeeds, move to 15-20%, then 30%, then beyond. Each step is a natural checkpoint to pause, assess, or pivot. You remain in control of pace and risk.
Leverage phase: Renegotiate with your primary carrier. Once secondary volume is live and performing, return to your primary carrier with real data showing a credible alternative. Rate improvements often follow quickly.
See also
What specific process should a logistics leader follow when brought in to protect freight margin over a 90-day period?
First, pull the most recent trailing 12 months of all data to understand the specific shipper's actual shipment profile and exposures. Then organize the data by carrier, service type, and geography to identify optimization opportunities and cost leakage patterns.
How should CFOs distinguish between legitimate cost increases and billing leakage in freight expenses?
Legitimate cost increases, such as correctly billed and owed tariffs, are not leakage—they are just increased costs to do business. Actual leakage shows up as incorrect charges, overbilling, or missed contractual discounts that were already negotiated but not applied consistently.
What are accessorial charges and how dramatically can they impact total shipping costs?
Accessorials are surcharges applied to freight, fuel, and other shipping components. In small package shipping, they can be much more impactful. One furniture customer saw 47% of their $400,000 annual shipping spend consumed by accessorial charges alone.