Investment cases & benefit ownership

An investment case is a structured comparison of choices, including the choice to continue the current course. Its job is to improve allocation under uncertainty, not to make a preferred proposal look inevitable.

The case is incomplete until someone owns whether the promised benefit is realized after delivery. Finishing the project is not the same as creating the outcome.

Define the baseline and problem

Describe current performance, affected groups, material cost or risk, and the evidence that action may be warranted. Include what happens if nothing changes and which parts of the baseline are uncertain.

Do not make the current course artificially expensive or the preferred future artificially clean. Ongoing costs, degradation, and opportunity loss belong in the baseline; transition, adoption, and operating costs belong in the options.

Develop credible options

Compare at least three approaches where the decision warrants it: maintain, improve, replace, partner, phase, or stop. Use the same time horizon and categories across options.

For each, examine:

• strategic contribution and affected outcome;
• full lifecycle cost and constrained capacity;
• benefit range and time to evidence;
• implementation, adoption, operational, and exit risk;
• dependencies and distribution of cost or benefit;
• reversibility and option value; and
• material assumptions.

Proportion the analysis to the decision’s scale and reversibility.

Test uncertainty and optimism

Use ranges, sensitivity, and scenarios. Ask which assumption has the strongest incentive to be optimistic and what independent evidence could challenge it. Include implementation delay, adoption shortfall, continuing parallel cost, and the possibility that the organization cannot remove the displaced spend.

Record uncertainty rather than converting every unknown into a precise point estimate.

Assign benefit ownership

The delivery owner controls scope and execution. The benefit owner controls or influences the operating change that creates value. They may be different people.

Name the benefit, baseline, measurement, owner, dependencies, first evidence date, and decision that follows. If no one can own the changed behavior, capacity, revenue, risk, or cost, the benefit is not yet credible.

Practice with one decision case

Create a concise case for a real investment or renewal.

1. State the problem, baseline, and decision date.
2. Compare the current course with at least two credible alternatives.
3. Use consistent lifecycle cost and benefit categories.
4. Show ranges, sensitivity, adoption assumptions, and downside scenarios.
5. Identify affected stakeholders and distributional effects.
6. Name the delivery owner and benefit owner separately.
7. Define first evidence, a review trigger, and a stop or adaptation condition.

Have a finance partner and one informed skeptic review the case. Keep confidential commercial and personal information out of the learning artifact.

Use resources with context

The Green Book provides a rigorous public approach to appraisal, options, uncertainty, sensitivity, benefits, and public value. Playing to Win tests whether the investment supports a coherent strategic choice and the capabilities required to realize it.

Use the level of rigor the choice warrants. Resource completion does not prove investment judgment.

Evidence of Practice

You may be ready to record Lead when you can:

• describe a fair baseline and the consequence of no action;
• compare credible options on consistent terms;
• include lifecycle, adoption, operating, and exit effects;
• show ranges, sensitivity, and downside without false precision;
• distinguish delivery ownership from benefit ownership;
• define evidence and a decision after the case is approved; and
• stop, adapt, or challenge an investment when realized evidence diverges from the promise.

These prompts inform an explicit proficiency judgment; they do not create it.

Continue through the tree

Financial fluency for directors strengthens the driver model. Strategy diagnosis & coherent action tests strategic fit. Decision writing makes the case inspectable, and Influence across boundaries surfaces the real trade. Continue to Portfolio choices & stop decisions to allocate across competing cases.