Agile decision-making – deciding when you don’t have all the facts

By combining scenario planning and Bayesian thinking – in essence, using probabilistic rather than deterministic methods – Professor Chevallier says senior executives can bolster their decision-making abilities, enabling them to move forward.
“You can’t predict the future but you can plan for it,” says Professor Chevallier. “Define the future scenarios, prepare for them and then adapt!”
Here are the top ten takeaways from Agile decision-making – deciding when you don’t have all the facts that can help senior leaders make better choices in uncertain times:
- Think of the futures, not of the future
Identify the full range of possible ways the future might look like six months or even one year from now, from a worst-case scenario to a best-case one.
- Determine what’s behind the curtain
Out of the plethora of forces out there, identify the two or three that have the most influence on the future. Then continuously monitor those forces to determine their intensity and in which direction they are pushing the future.
- Plan your success
Develop an action plan that will enable you to be successful for different scenarios, so that you’re prepared no matter what the future might look like – whether that’s the best- or worst-case scenario.
- Forget about efficiency
Efficiency requires only one plan in order to avoid wasting resources. While this lean operations style is sensible under normal operating circumstances, it’s not appropriate when uncertainty skyrockets.
- Focus on effectiveness
Effectiveness is being prepared for whatever might unfold; it requires thinking broadly and having plans of action for each scenario. But as the future, especially in these times, is highly uncertain, you should aim for effectiveness rather than efficiency – at least at the onset.
- Decide on your approach
Move away from a Boolean – i.e. black and white – approach to a Bayesian approach where there are shades of grey. Bayesian thinking is rooted in probability – one version of the future becomes more probable even though it remains a grey area.
- Prepare a wide launch
Roll out several plans of action initially, but as more data becomes available, stop investing in these unnecessary or irrelevant action plans. By gradually narrowing down your rollout, you re-introduce efficiency in your operations.
- Change your mind
As new evidence unfolds, update your thinking. This will require you changing your mind, which is perfectly acceptable and, in fact, the only reasonable way to act, when circumstances change.
- Order your doors
Jeff Bezos – love him or hate him – has a great way to classify decisions: some are one-way doors (irreversible) while others are two-way doors (reversible). Order your decisions so that you make the irreversible ones later, when you have acquired a better understanding of what the future will be.
- Embrace an uncertain future
Even if a perfect storm like COVID-19 appears, organizations can weather it by making the best out of what’s happening to them. Success exists even in the worst case; maybe that’s simply avoiding bankruptcy, for example, but being hit by a perfect storm doesn’t mean you’ll fail. You have a chance to shine no matter the environment, it’s your job to recognize it and make it happen.
Research Information & Knowledge Hub for additional information on IMD publications
Despite massive investments, sustainable business still isn't very profitable for most companies. Here's a fresh approach for resetting sustainability for customer value—and profitability. Store aisles packed with products labelled "environmentall...
Promotion decisions are among the most powerful cultural signals that leaders send. They reveal what an organization truly values, in terms of results but also in how those results are achieved. The Promotion Dilemma explores the tension that mana...
Simon J Evenett and Oliver Jones show how to navigate geopolitical volatility and turn uncertainty into competitive advantage.
AI is reshaping leadership and work. Ensuring women help design and govern it will determine whether the technology advances equity or deepens inequality.
Milda Mitkute shares lessons from scaling second-hand clothes business Vinted into Lithuania’s first unicorn, and launching a new startup to make maths education more engaging and accessible for children.
How do you rebuild trust in a 160-year-old bank? Société Générale CEO Slawomir Krupa on discipline, fintech disruption, and tough turnaround decisions.
This technical note introduces a framework for understanding why effective leaders sometimes act in ways that undermine their own goals. Moving beyond traditional style models that treat leaders as relatively consistent, the note presents 'leaders...
Hong Kong Broadband Network (HKBN) charted a success story starting out as the smallest new entrant in Hong Kong’s highly competitive telecom industry in 1999 and went on to become the second largest provider of residential broadband within 10 yea...
The Wealth of Nations remains a cornerstone of economic thought. Adam Smith’s treatise on free trade is relevant for today’s fracturing global economy.
Data strategy competitive advantage depends on a proprietary knowledge base of internal and external data powering predictive models.
Research Information & Knowledge Hub for additional information on IMD publications
Research Information & Knowledge Hub for additional information on IMD publications
Research Information & Knowledge Hub for additional information on IMD publications
Research Information & Knowledge Hub for additional information on IMD publications
in I by IMD Brain Circuits 11 March 2026
Research Information & Knowledge Hub for additional information on IMD publications
Research Information & Knowledge Hub for additional information on IMD publications
Research Information & Knowledge Hub for additional information on IMD publications
Research Information & Knowledge Hub for additional information on IMD publications
Research Information & Knowledge Hub for additional information on IMD publications
in I by IMD
Research Information & Knowledge Hub for additional information on IMD publications