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4: Portfolio Planning, Roadmaps and Capacity Optimization

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    Portfolio Planning, Roadmapping, and Capacity Optimization

    Selecting the right components is only half the battle. Once a portfolio has been authorized, someone has to turn that authorization into an actual plan for getting the work done. This chapter is about that translation. A strategic roadmap gives the portfolio its shape and sequence, showing at a high level what happens when, without pretending to be a detailed project schedule. But a roadmap on its own is not enough, because components rarely operate in clean isolation. They compete for the same people, the same budget, and sometimes even for goals that pull in opposite directions, which is why understanding interdependency and intra-dependency is just as important as building the roadmap itself.

    This chapter also tackles a distinction that is easy to blur but costly to ignore: capacity versus capability. Having enough people or enough budget does not guarantee that an organization has the right skills or technology to actually deliver. You will work through resource estimation methods, from rough top-down estimates to detailed bottom-up roll-ups, and see how these connect back to the idea of progressive elaboration introduced in Chapter 1. The chapter closes by examining how portfolios can plan on a strict governance cadence while still allowing individual components to execute with agile, adaptive speed underneath that structure.

    Two case studies ground these ideas in real constraints. One follows an aerospace manufacturer whose carefully built roadmap collides with a titanium shortage. The other follows an agricultural cooperative in Kenya navigating labor, infrastructure, and capital limitations all at once. Both make the same point: planning is not a one-time exercise completed before work begins. It is an ongoing discipline that has to absorb shocks, gaps, and surprises without losing sight of the portfolio's overall direction.

    Learning Objectives

    By the end of this chapter, you should be able to:

    • Explain what a strategic portfolio roadmap is and is not, and how it authorizes and activates portfolio structure.
    • Distinguish interdependency from intra-dependency and identify how competing component goals create planning conflicts.
    • Apply structural sequencing to avoid deferring planning problems downstream.
    • Differentiate capacity from capability and recognize the signals that indicate each is failing.
    • Compare top-down and bottom-up resource estimation methods and connect them to the principle of progressive elaboration.
    • Evaluate how adaptive portfolio cadences allow agile execution to coexist with formal governance.
    • Analyze real-world case studies to identify how external shocks and resource constraints disrupt portfolio plans.

    4: Portfolio Planning, Roadmaps and Capacity Optimization is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by LibreTexts.