Portfolio Management as Fluid Dynamics
- ramosambitiongroup
- 5 days ago
- 5 min read

1. Introduction: From the Static Funnel approach to the Flowing River
This article is not about a new methodology, it is about a different way of approaching portfolio management. And that can be done within existing methodologies such as MOP, SAFE, etc.
In the traditional management world, we often think of a portfolio as an "overview in the portfolio funnel" or a static list of change initiatives. We weigh, we select and we prioritize.
And then there is prioritization, the recurring dilemma that it is precisely the high-priority change initiatives that are not possible because of the unavailability of critical capacity while other change initiatives can.
In a world of constant acceleration, you see that prioritization is no longer effective, especially in public organizations. The result? Fragmentation, sluggish decision-making and a bitter battle for scarce capacity. The reaction? Other ways of prioritizing that often don't work either. The result? Stalled portfolios in which nothing is possible anymore because the critical capacity cannot be unlocked.

Particularly in public organizations with an administrative political context, portfolio management requires a radical metaphor change: we should no longer see the portfolio as a filter, but as a dynamic flow system. The task of portfolio management should not be to micro-manage every drop of water, but to design the bed of the river so that the flow of value moves optimally and unhindered to its destination.
This new vision rests on the 3 Radicals:
Movement over Selection: The primary goal is to create the most efficient movement from initiatives to benefit realization, not just filling a list.
System Value over Individual Score: An initiative is only successful if it promotes the flow of the entire system (think of a platform that frees up capacity for others).
Geometry over List Management: Steering on making change initiatives 'flow' through the portfolio as efficiently as possible by managing the conditions to optimize the flow.

2. The Paradigm Shift: From Selection to Movement
Where the classic manager asks: "Which initiatives do we choose?", this vision asks the other question: "What conditions do we create so that value can flow optimally?".
The table below marks the transformation from the 'Sieve' to the 'flow system':
Characteristic | Classic portfolio management (the sieve/gatekeeper) | Flow management (steering on the movement) |
Unit of analysis | The individual initiative | The total flow of value |
Role of the funnel | A filter that periodically selects | A dynamic system that conducts continuously |
Purpose of optimization | The highest score per project | Which change initiatives reinforce each other's movement if they are combined in relation to the portfolio system? |
Focus of management | Strategic fit and costs | Optimizing the entire movement in the portfolio system |
Power & Politics | Stakeholder communication (inform) | Power topology (managing coalitions). |
To truly control this flow, however, we need to understand the hidden dimensions that determine the shape of our "motion."
3. The Invisible Geometry: Calabi-Yau Dimensions in the Funnel
In string theory, hidden, coiled dimensions (Calabi-Yau spaces) determine how the physical world manifests. Mirroring the portfolio management practice, you could use the term Compactification : we roll up the enormous complexity of politics, culture and governance into clear rules and structures. As a result, we have insufficient insight into the influence of the hidden dimensions on the flow in the portfolio.

The 5 hidden dimensions that influence traffic flow:
Political influence and power topology: Strategic administrative priorities follow the dynamics of the political wishes and priorities that apply at that time. And how much 'power' plays a role in decision-making about change initiatives?
This is often insufficiently taken into account when considering initiatives. We know this is there, but it doesn't show up in decision-making.
Administrative and governance complexity: The 'friction coefficient' of public organisations.
Complicated long decision-making processes with many layers. This creates a distance between the administrative reality and the reality on the shop floor. 'Change initiatives simply continue while administrative bodies think that they still have to decide before the initiative continues'.
Exogenous factors: External forces such as 'black swans', unexpected administrative and political shifts.
This shifts that can change the entire shape of the portfolio. What flowed yesterday may be completely blocked today by a new reality.

Absorption capacity and the 'Zone of Inertia': The limit to the change saturation of the organization.
If you exceed this threshold, projects will flow 'out' of the pipeline, but the value will never land in practice. The organization is simply 'full'.
Change capacity of organizational units: How well can the organization handle the outcome of change initiatives.
What flows smoothly in one organizational unit can get stuck in another organizational unit due to a lack of adaptive capacity.

These hidden forces make it clear that decisions must remain agile in order to navigate this complex geometry.
4. Agility and balance: superposition and supersymmetry
To optimize flow, we can learn from principles from the quantum world:
Superimposition: The power of procrastination
In portfolio management, you could use superposition if an initiative can exist in multiple potential states at the same time (e.g. candidate for acceleration and redefinition).
Keep paths open: Don't commit initiatives to a single scope or partner too early.
Don't measure too early: A measurement makes the superposition 'collapse'. Categorization too early reduces the agility of your system.
Learning moment: Indeterminacy is a characteristic, not a defect. The trick is to let the situation collapse into one definitive reality only at the 'last responsible moment'.
Supersymmetry: Resolving inconsistencies
Supersymmetry forces us to program in complementary pairs. A portfolio that consists only of 'quick-profit initiatives' is a broken symmetry that becomes inconsistent over time.
Program in pairs: Link an initiative that requires capacity to an initiative that provides capacity (such as standardization).
Recognize the signal: A domination of one type of project is a signal of a broken balance in your 'theory' (strategy).
These principles require a flow dashboard to make the movement measurable.

5. Measuring What Moves: The Power Dashboard
If portfolio management should steer on the flow, you need the following 5 metrics in a flow dashboard:
Critical capacity friction: Is the critical capacity sufficiently and efficiently distributed to ensure optimal flow or are there 'blockages' (the 'friction points').
Supersymmetry: Is the ratio between initiatives that provide capacity versus initiatives that require capacity optimal?
Conversion rate: What percentage of initiatives have been implemented in the operational processes as agreed.
Flow efficiency: The ratio between the time that a change initiative is operational versus waiting time due to, for example, the unavailability of capacity or waiting for decision-making versus the total lead time.
Flow load: The primary indicator of the load on the portfolio. How many initiatives are in the system at the same time that flow through versus stagnant initiatives.

6. The New Role: The Portfolio Manager as Administrative Director
In this vision, the portfolio manager is no longer just the 'gate keeper' but an administrative director who stands next to the management.
The three most impactful shifts in your practice:
Design the flow ecology, not the prioritization list: Work on optimizing flow and rapid decision-making;
From information to interpretation: We should interpret and report much more on the hidden dimensions (such as power-topology and absorption capacity) for the board. Portfolio management should focus much more on optimizing the flow.

7. Conclusion: The Power of Movement and Flow
Portfolio management is the art of movement and improving flow. By no longer seeing the portfolio as a static collection of choices, but as a carefully designed stream of ecology, we create space for real value creation.





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