Outsource Preparation Only When the Freed Bottleneck Can Sell More Work

Buy usable output rather than nominal hours

A small specialist business may be fully booked while its highest-skilled worker spends substantial time preparing jobs. Outsourcing preparation seems an easy way to release expert capacity. Yet the saved hours have economic value only if they lead to additional completed sales. Client demand, final testing or another employee's schedule may constrain output first. The decision is whether the entire operating chain can turn the purchased preparation into extra contribution during the period being evaluated.

ACCA's discussion of constraints explains why relieving one bottleneck can expose another. That principle is useful here, but the numbers below are independently invented. The example concerns buying a preparation service for a recurring monthly workload, not ranking product mixes or accepting a discounted special order. It also avoids valuing every expert hour at a headline billing rate. An available hour is not automatically a billable hour, and a billable hour is not automatically collected cash.

Supporting references: 1. ACCA: Throughput accounting and the theory of constraints

Map the existing monthly workload

Assume 160 expert hours are available each month. Every completed job uses half an hour of preparation and one and a half hours of specialist work, so current output is 80 jobs. Each sells for USD 300 and incurs USD 90 of materials and other per-job cash costs. Expert salary and rent are unchanged across the alternatives. Existing contribution before those unchanged costs is therefore USD 16,800: 80 jobs multiplied by USD 210 of contribution per job.

An outside supplier offers preparation at USD 22 for every completed job, including the existing workload. The supplier also charges USD 600 per month for coordination and access. Specialist work still requires 1.5 expert hours, and checking the prepared file adds 0.1 hour. Total expert time falls to 1.6 hours per job, allowing at most 100 jobs within 160 hours. Assume materials, supplier preparation and coordination are paid in the same month as customer cash is received.

Price all outsourced jobs, including existing work

Outsourced contribution per job becomes USD 188 after USD 90 of ordinary variable cost and USD 22 of preparation cost. Deduct the USD 600 coordination payment from the month's total. At 100 completed jobs, contribution is USD 18,200 and the gain over the existing operation is USD 1,400. It would be wrong to charge preparation only to the extra 20 jobs: the offer outsources preparation for all 100, including jobs previously prepared internally without an additional cash payment.

ACCA's relevant-cost framework focuses attention on changed cash flows. The expert's unchanged salary is therefore not a cash saving in this comparison, even though work allocation improves. The USD 210 existing contribution is the benchmark that must be preserved. Depreciation allocations or an average expert hourly salary cannot replace the incremental payments and sales actually caused by outsourcing. If compensation, overtime or staffing would change, include that change explicitly rather than assuming either that labor is free or that every saved hour reduces payroll.

Supporting references: 2. ACCA: Relevant costs

Apply demand and downstream limits before ranking

Suppose the sales team can confidently sell only 85 jobs. Outsourced contribution is USD 15,380, which is USD 1,420 below the current USD 16,800. At 90 jobs it is USD 16,320, still USD 480 below the baseline. At 95 it reaches USD 17,260, a USD 460 improvement. The final table row assumes 100 sales and full use of released expert capacity. These rows are conditional cases, not probabilities or estimates of what customers will actually buy.

A separate final-testing station may cap monthly output at 90 even when expert capacity reaches 100. In that case use the 90-job result and investigate testing before signing a monthly commitment. Work prepared and waiting for final testing has consumed supplier cash without creating the modeled sale. Track completed, saleable output rather than prepared files or expert utilization, because both intermediate measures can rise while the business earns less contribution than before.

Measure how review quality changes the result

The mathematical output boundary for matching existing contribution is 17,400 divided by 188, or approximately 92.55 jobs. Whole-job production requires at least 93 completed sales, assuming the same costs and no further constraints. That calculation is a decision threshold for this specific outsourcing offer. It cannot justify purchasing preparation when demand is unconfirmed, nor should a business plan to operate indefinitely with no allowance for supplier defects, customer complaints or capacity interruptions.

If checking instead consumes 0.3 expert hour per job, total expert time becomes 1.8 hours. Capacity is approximately 88.89 jobs, which permits only 88 whole jobs within the month. At 88, outsourced contribution is USD 15,944 and the operation loses USD 856 against its baseline. No price negotiation on a few extra files repairs the main issue: checking has absorbed the capacity benefit. Measure review time on representative difficult jobs before extrapolating a smooth average from easy examples.

Contract for a verifiable handoff

Australian government contractor guidance emphasizes defining the work and acceptable results. Apply that idea by specifying the preparation checklist, input formats, security requirements, delivery cutoffs and responsibility for defective files. The source is contract-planning guidance, not evidence that a particular service will meet the assumed review time. A trial should establish whether the handoff is usable by the specialist without reconstructing work that the supplier was supposedly hired to remove.

Alternatives include outsourcing only a documented subset, changing internal preparation templates or buying preparation during peak weeks. Each needs a revised quote: the USD 22 price and USD 600 payment cannot automatically be carried into a smaller arrangement. Include training time, transition overlap, client permissions and exit costs when they affect the decision horizon. A first month with heavy setup may be unattractive even if later months work; compare those periods separately instead of burying setup inside a misleading steady-state average.

Supporting references: 3. Australian Government: Prepare a contract

Require a completed-sales evidence trail

Before committing, verify current expert hours, preparation time, checking time and ordinary demand using the same month definition. Identify the next constraint and its capacity. Obtain a written supplier scope and payment schedule, then calculate contribution for the output that can both be completed and sold. Approve a limited engagement only if the cash dates fit the operating reserve and the number of additional jobs needed is supported by more than a general statement that the business feels busy.

During the engagement, record supplier payments, expert review minutes, files rejected, completed jobs and collected receipts. Compare them with the original baseline without assigning savings to salary that was still paid. If the released hours become rest or business development instead of immediate sales, report that outcome honestly and evaluate its purpose separately. Continue, renegotiate or stop based on the measured handoff and realistic downstream throughput, with enough notice to restore internal preparation before customer work is disrupted.

Limits of this analysis

• The supplier quote applies to all completed jobs; a selective or seasonal arrangement requires different pricing.
• Demand, final testing and customer acceptance can constrain completed sales below the expert-hour ceiling.
• Expert salary and rent remain unchanged; this is a contribution comparison rather than a full profit forecast.
• Average review times can conceal difficult files, learning costs and rework that eliminate capacity gains.
• Setup payments, taxes, credit losses and termination costs must be added for a real engagement and its cash horizon.