The Change Order Economy

This series has spent weeks documenting the costs of concurrent scheduling. The rework, the spaghetti routing, the workforce attrition, the schedule overruns that the CBO has confirmed run 20 to 100 percent beyond final estimates. The implicit assumption in all of it is that prime contractors are victims of a system they cannot control.

That assumption deserves examination.

Because there is another way to read the data. A way that is harder to say out loud, but that the contract structures involved make difficult to dismiss.

What if some prime contractors are not trapped by the concurrent scheduling model? What if they built it?

How the Money Actually Works

The Navy now typically awards fixed-price orders for ship repair work.¹ Fixed-price means the prime contractor carries the cost risk for the base scope. If the work takes longer than estimated, the overrun comes out of margin. That is the theory of the fixed-price contract: align contractor incentives with efficient execution.

But fixed-price applies to the base scope. It does not apply to what grows out of the base scope when concurrent scheduling creates the predictable chaos this series has been documenting.

The 9,000 contract changes in the cruiser modernization program were not fixed-price adjustments. They were negotiated modifications, each one representing scope that was not in the original contract, priced at the point of maximum leverage for the party holding the work.² The GAO documented that the Navy must negotiate the price of growth work under significant schedule pressure. Speed matters more than getting the best price when the ship is already in the dry dock and the undocking date is fixed.²

This is The Change Order Economy: the financial structure that makes concurrent scheduling not just tolerable for certain prime contractors, but potentially preferable. The base contract is fixed-price and thin. The change orders that flow from predictable concurrent scheduling chaos are negotiated at full margin. The prime that accepts an impossible concurrent schedule is not necessarily naive. They may be pricing the rework.

The Incentive Structure the CBO Identified

The CBO's December 2025 report on Navy maintenance delays noted that fixed-price contracts give shipyards more incentive to keep costs low than to complete tasks on time.³ The CBO noted that some Navy officials disagreed with this characterization, but the contract structure itself is not in dispute.

A fixed-price contract incentivizes the contractor to minimize cost on the base scope. It does not incentivize the contractor to minimize the total cost of the availability, because the availability's total cost includes change order work that is negotiated separately. The contractor's financial interest is optimized by running the base scope as efficiently as possible while maximizing the change order revenue that accrues from the execution environment.

Concurrent scheduling produces the execution environment that maximizes change order revenue. Every integration failure between scopes is a change order. Every rework event caused by sequence conflicts is a change order. Every Specification Drift discrepancy that surfaces mid-availability is a change order. Every Float-Forward Deficit from a previous availability that the current contractor must address is a change order. The chaos is the revenue.

What This Means for the Navy

The Navy's procurement structure selects for primes that can manage the Change Order Economy. A prime that bids to execute a clean sequential availability at fair price loses to a prime that bids thin on the base scope and recovers through the change order stream. The Navy's evaluated price mechanism rewards the thin bid. The contract structure rewards the change order recovery. The combined system selects for contractors optimized for the second economy rather than the first.

This is not a conspiracy. It is a rational response to a procurement structure. The contractors that survive in this environment are the contractors that have learned to operate profitably in the Change Order Economy. The ones that tried to operate under the assumption that the base scope was the real scope have mostly exited the market or consolidated into larger firms that understand the structural dynamics.

The GAO's February 2025 report on the shipbuilding industrial base documented the consolidation trajectory.⁴ The yards operating today are the yards that adapted to the competitive fixed-price environment. Adaptation meant learning to manage the Change Order Economy. The yards that did not adapt are not operating today.

Closing the Economy

The Change Order Economy cannot be closed by asking contractors to write cleaner bids. The structural incentive for thin base bids plus change order recovery is built into the contract mechanism. Individual contractors that responded differently would lose competitive awards.

Closing it requires changing what the contract mechanism rewards. The CBO specifically noted that the Navy could consider contract structures that better align incentives for on-time completion.³ Cost-reimbursable contracts with performance incentives align the contractor's financial interest with the Navy's schedule interest. So do target-price contracts with underrun sharing and overrun penalties that are symmetric around the target.

The Navy shifted away from cost-reimbursable contracts because the prior structure produced cost growth without sufficient discipline. That was a correct assessment of the prior problem. The current structure produces schedule growth through the Change Order Economy. Both extremes produce pathologies. A middle path that disciplines cost without creating the change order incentive is possible.

Prime contractor executives and Navy program office leadership: the next time a concurrent availability schedule arrives on your desk, review the revenue composition of your most recent comparable availability. If more than 25 percent of your total revenue came from change orders rather than base scope, you are operating in the Change Order Economy whether you intended to or not. The question is whether the next availability is structured to reduce that percentage or to continue it.