1st90: The Behavior Brief
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1st90: The Behavior Brief
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Dive into a collection of past posts and rediscover timeless content.

Behavior Brief #012: It’s Not the Strategy. It’s the Doing.

Behavior Brief #012: It’s Not the Strategy. It’s the Doing.

Execution lives in what happens every day—not what gets announced.

Mar 25, 2026

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4 min read

Behavior Brief #011: Why Change Fades

Behavior Brief #011: Why Change Fades

...and How to Make It Stick

Mar 18, 2026

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3 min read

Behavior Brief #010: The 10-Minute Rule of Culture Change

Behavior Brief #010: The 10-Minute Rule of Culture Change

Why Small Daily Practices Outperform Every Town Hall

Mar 11, 2026

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4 min read

Behavior Brief #009: Personalization Is the New Scale

Behavior Brief #009: Personalization Is the New Scale

Sameness spreads information. Personalization spreads behavior. Behavior change = business results

Mar 4, 2026

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3 min read

Behavior Brief #008: It's Not Linear

Behavior Brief #008: It's Not Linear

Behavior change is cyclical — so why are our transformation plans linear?

Feb 25, 2026

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3 min read

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Frequently Asked Questions

What is 1st90?

1st 90 is a behavior change platform that helps organizations turn strategy into consistent daily action. Instead of focusing on knowledge or training, we focus on what people actually do—and how to make those behaviors stick.

What do you mean by “behavior change”?

Most transformations fail not because people don’t understand what to do—but because behavior doesn’t change at scale.
We design small, repeatable actions embedded into real work, reinforced over time, so new ways of working actually become the default.

Who do you typically work with?

We partner with enterprise leaders across functions—operations, sales, finance, and HR—especially in organizations undergoing transformation (AI adoption, leadership development, frontline performance).
Our work is most effective where behavior change directly drives business outcomes.

How do you measure success?

We measure behavior adoption—not just completion or engagement.
That includes:

  • Frequency of key behaviors in daily work

  • Consistency over time

  • Manager visibility into adoption

  • Connection to business outcomes (productivity, performance, AI usage, etc.)

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