Why Smart Executives Make Bad Calls Under Pressure

The worst decisions I've watched leaders make weren't made by unqualified people. They were made by very capable people at 6:40 p.m. on a Thursday, with a deadline, an angry stakeholder, and three other fires burning.

Capability wasn't the problem. Biology was.

What happens to executive decision making under pressure?

Under acute pressure, executive decision making shifts from deliberate reasoning toward fast, habitual responses. Neuroscientist Amy Arnsten's research at Yale has shown that stress chemistry can quickly weaken the prefrontal cortex, the part of the brain we lean on for planning, weighing tradeoffs, and holding several options in mind at once. More reflexive circuits take over.

That's useful if you're dodging a falling branch. It's less useful when you're deciding whether to cut a product line.

Pressure doesn't make you dumber. It makes you narrower.

What does a narrowed decision look like?

• You consider one option instead of three

• You anchor on whatever the last person in the room said

• You treat a reversible decision as if it were permanent, or the other way around

• You stop asking who disagrees

How can executives make better decisions under pressure?

You can't remove the stress, so build a speed bump that forces your brain back into deliberate mode. I recommend something almost embarrassingly simple: an index card.

Five lines. Two minutes. Writing forces the deliberate system back online, and line three does a lot of the work. Jeff Bezos popularized the idea of one-way and two-way doors: if a decision is easy to reverse, decide fast and move on. Save your slow thinking for the doors that lock behind you.

When should you use the index card?

Any time a decision is high-stakes and you notice the clock in your chest. A good tell: if you feel relieved the moment you decide, slow down and fill out the card first. Relief often means you just ended the discomfort, not that you solved the problem.

The takeaway

Keep a stack of index cards on your desk this week. Use one for every decision that feels urgent. You'll make fewer calls you regret, and you'll learn a lot about which pressures are real. If you'd like a sparring partner for the big ones, that's what executive advising at Kairos Telos is for. It pairs well with the timing test in The Kairos Question.

Frequently asked questions

Why do leaders make poor decisions under stress?

Acute stress shifts brain activity away from the prefrontal cortex, which handles deliberate reasoning, toward faster habitual responses. Leaders consider fewer options and anchor on recent input.

What is a one-way door decision?

A one-way door is a decision that's hard or impossible to reverse, like a major acquisition or a layoff. Two-way doors are reversible and should be made quickly. The distinction helps leaders decide how much deliberation a choice deserves.

How can I slow down a decision without stalling the team?

Use a short, fixed ritual like a five-line index card or a ten-minute pre-mortem. It adds minutes, not days, and signals to the team that the decision got real thought.

Facing a decision you can't afford to get wrong? Let's talk it through.