Decision-Making Under Uncertainty: How Executives Decide When Certainty Is Incomplete

Article
October 12, 2026
An executive weighing a decision with unfinished forecasts on screen — how leaders decide well under uncertainty.

Waiting for certainty hands the timing of your decisions to events. Decision-ready judgement as a discipline: framing the decision, naming the assumptions, deciding at the right altitude, and reviewing on a cadence.

Executives decide well under uncertainty by managing the decision, not chasing the information. Waiting for certainty hands the timing of your decisions to events, and events set worse terms than judgement does. Moustafa Hamwi, Executive Presence Advisor to the C-Suite, builds this discipline with senior leaders as decision-ready judgement. Frame the decision, name the assumptions, decide at the right altitude, and review on a cadence. Certainty is not coming on your schedule. Judgement has to be ready before it arrives.

Why does waiting for certainty cost more than deciding without it?

Waiting costs more because the decision window and the information curve rarely meet. The data a leader wants most arrives just after the option it would have informed has expired. Meanwhile competitors, markets and events keep deciding at full speed, week after waiting week. A delayed decision is still a decision. Events simply made it by default, on the worst available terms.

The waiting also corrodes something quieter: the leader's standing as a decider. Teams read a stalled call as accurately as boards do. The discipline of executive composure exists partly for this moment: staying clear enough to decide while everyone else waits for the fog to lift.

Uncertainty, in other words, is not the obstacle to the decision. It is the condition the decision exists to handle.

What does the evidence say about executive decision-making?

The evidence says excellence in deciding is rare, and it is the organisations' own people saying so. McKinsey's 2019 decision-making survey of 1,259 respondents found only 20% saying their organisations excel at decision-making. The same survey found respondents at the excelling organisations twice as likely to report returns of at least 20% from their organisation's most recent big-bet decision.

Read those two findings together and the gap is not access to information, which every large organisation now has in excess. The gap is discipline: the excelling minority decide with method while the rest wait, escalate, or relitigate. For Moustafa Hamwi, the tell is ownership: the organisations that decide well have usually made deciding itself someone's visible, practised craft rather than a by-product of seniority.

What are the four moves of decision-ready judgement?

Decision-ready judgement runs on four moves, and the first is a single sentence: frame the decision, stating exactly what you are deciding and by when. Name the assumptions next, in writing, because a decision under uncertainty is really a bet on what must hold true. Then decide at the right altitude: settle the principle that is genuinely yours to settle, and delegate the cascade beneath it. Fix the review date last, at the moment of deciding, so the decision carries its own correction mechanism into the future.

The decision-ready pass:

  • The decision framed: one sentence, with its deadline attached.
  • The assumptions named: what must hold true, written down.
  • The altitude set: decide the principle; delegate the cascade.
  • The review date fixed: set while deciding, not while worrying.

Run the pass and an uncertain decision becomes a structured bet with a scheduled check. Skip it and the decision becomes hope wearing a title slide.

What does deciding at the right altitude mean?

Deciding at the right altitude means settling the question at the level where it is genuinely yours, and no lower. Under pressure, leaders drop altitude: detail feels like control, so the chief executive ends up choosing between vendor shortlists while the strategic question above them sits unanswered. Descending buys comfort and spends the one thing only the top of the organisation can supply, which is direction.

Flying too high fails differently. A decision pitched as pure abstraction decides nothing; the organisation cannot land it. The altitude test: if your team could make this call with the assumptions you have just written down, it is theirs. If they cannot, it is yours, and it is yours now.

Where did your last stalled decisions actually belong? Most leaders who ask find one hovering at the wrong height.

How do leaders build the decision cadence?

Leaders build the cadence by attaching a review date to every significant decision at the moment they make it, and by reviewing assumptions rather than relitigating outcomes. The question at the review is never whether the decision looks clever in hindsight. It is whether the named assumptions still hold, because that is the only question the review can act on.

A working cadence converts uncertainty from a threat into a schedule. Deciding stops being a single exposed moment and becomes a loop: decide, watch the assumptions, adjust at the review. Leaders who run the loop report the quiet side benefit first: the fear drains out of deciding, because no decision is final in the way it used to feel.

Composure is what keeps all four moves usable when pressure rises, and leaders build that decision capacity through the Executive Composure discipline. Frame it, name it, set the altitude, fix the date. The decision window will close on its own; readiness will not.

FAQ

How do leaders make good decisions under uncertainty?

Leaders make good decisions under uncertainty by running a discipline rather than waiting for clarity. Frame the decision in one sentence with a deadline, and name the assumptions it depends on. Decide at the level that is genuinely yours, and fix a review date at the moment of deciding. The method converts an uncertain call into a structured bet with a scheduled correction; waiting simply lets events decide instead.

How do CEOs make decisions with incomplete information?

CEOs decide with incomplete information by treating the gaps as named assumptions rather than reasons to wait. Writing down what must hold true turns unknowns into things you can watch, test and correct at a fixed review. The decision then rests on explicit judgement rather than on information that was never going to arrive in time.

What is decision-ready judgement?

Decision-ready judgement is the practised ability to make sound calls before certainty arrives: the decision framed, the assumptions named, the altitude set, the review fixed. It treats deciding as a craft that improves with method, not a temperament that arrives with seniority. The discipline belongs to executive composure, because clarity under pressure is what makes the method usable.

When is it wrong to decide quickly?

Deciding quickly is wrong when waiting is genuinely cheap and the decision is genuinely irreversible, which is rarer than it feels. The honest test is whether new information will actually arrive inside the decision window, and whether it would change the call. If both answers are yes, schedule the decision. If either is no, speed is not the risk; drift is.

How often do leaders revisit a decision made under uncertainty?

Leaders revisit a decision on the cadence fixed when they made it, timed to the moment the assumptions next become testable rather than to the comfort of the calendar. The review checks assumptions, not hindsight. A decision whose assumptions still hold stays untouched, which is a large part of the value of writing them down in the first place.

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