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In the Office

Under Pressure, Your People Run the Old Play

When the stakes go up, the brain hands control to habit. If the new way isn't the habit yet, the old way wins.

Pat Blakesley, Protos EQ | October 2026 | 3 min read | From Issue 01

You rolled out the new process. Everyone sat through the training. Heads nodded. Somebody even said, "This makes a lot of sense." Three weeks later the quarter got tight, a big client got loud, and the team went straight back to the old way like the training never happened.

It's tempting to call that resistance. Or laziness. Or a team that doesn't listen. Most of the time it's none of those. It's wiring.

What's going on in the brain

The prefrontal cortex is the part of your brain that plans ahead, weighs options, and holds back the first impulse. It's the part you need to run a new process, because a new process takes deliberate thought.

It's also fragile. Neuroscientist Amy Arnsten's research review lays out how even fairly mild stress, especially stress that feels out of your control, can quickly weaken prefrontal function. Stress chemistry floods the system, the planning circuits lose their grip, and older, more reflexive circuits take over more of the work.

Lars Schwabe and Oliver Wolf showed what that looks like in behavior. People in their study learned two actions that each earned a food reward. Then one of the rewards was made less appealing: participants ate that food until they'd had enough of it. People who hadn't been stressed adjusted and backed off the action that no longer paid off. People who'd been put through a stressful task kept right on doing it. Stress pushed them from thinking about the goal to running the habit.

Why this matters

Put those together and you get a hard truth for any leader. Training changes what people know. It doesn't change what they do under pressure until the new behavior becomes the habit. When stress hits, the brain grabs whatever is most practiced. If the old play has ten years of reps and the new play has three weeks, you already know which one shows up.

That's why change efforts look great in calm weeks and fall apart in the crunch. The crunch is the real test, and it's the exact moment the brain is least able to think its way into the new behavior.

The derailment point

People get off track at any moment when the new way still takes effort. Every decision that makes them stop, remember, and choose the new process is a spot where stress can slip the old habit back in.

How you fix it

  1. Decide before the pressure hits. Psychologist Peter Gollwitzer's research on implementation intentions shows the power of a simple if-then plan: "If a client pushes back on price, then I ask what changed." When Gollwitzer and Paschal Sheeran pooled 94 studies, if-then plans had a medium-to-large effect on people reaching their goals. The plan does the thinking ahead of time, so the right move is loaded and ready when thinking gets expensive.
  2. Map the pressure points. Where does the old play usually come back? The pricing call, the angry customer, the end-of-quarter push? Write one if-then plan for each.
  3. Rehearse the hard version. Role-play the tough client, not the friendly one. You're building reps until the new behavior is the default.
  4. Judge adoption in the crunch. Don't measure the rollout by how the training went. Watch what happens during the stressful week, then coach to the gaps you see there.

This isn't just an office problem. The same wiring runs your life at home. If you're trying to stop answering email at the dinner table, "I'll try harder" won't survive a stressful day. "If I walk in the door after work, then my phone goes in the kitchen drawer" has a much better shot.

Sources

  • Arnsten, A. F. T. (2009). Stress signalling pathways that impair prefrontal cortex structure and function. Nature Reviews Neuroscience, 10(6), 410–422. doi:10.1038/nrn2648 (opens in a new tab)
  • Schwabe, L., & Wolf, O. T. (2009). Stress prompts habit behavior in humans. Journal of Neuroscience, 29(22), 7191–7198.
  • Gollwitzer, P. M. (1999). Implementation intentions: Strong effects of simple plans. American Psychologist, 54(7), 493–503. doi:10.1037/0003-066X.54.7.493 (opens in a new tab)
  • Gollwitzer, P. M., & Sheeran, P. (2006). Implementation intentions and goal achievement: A meta-analysis of effects and processes. Advances in Experimental Social Psychology, 38, 69–119. doi:10.1016/S0065-2601(06)38002-1 (opens in a new tab)

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