Behavioural Change Toolkit · Diagnose

Target Behaviour Definition

Turning aspiration into something you can actually design for. This is the highest-value 30 minutes in the whole toolkit, and the step most often skipped.


The film test

If you can’t film it, it isn’t a behaviour.

Not a behaviour Behaviour
Be more collaborative Invite one person from another team to your weekly planning session
Take ownership When you spot a problem outside your remit, raise it in the channel with a named next step
Embrace the new system Log the call in the CRM before leaving the client’s car park
Be more customer-focused Call the customer back the same day, even without an answer
Improve data quality Complete the four mandatory fields at ticket close, not at week end
Adopt agile ways of working Bring blockers to stand-up rather than emailing the manager

Notice the right-hand column names who, what, when and where. That’s what makes it designable.


The definition worksheet

Complete one per behaviour. Use T — Behaviour Note for the note.

Behaviour definition

B-number / name: _______________

Who exactly (role, not department): _______________ Does what (an observable action verb): _______________ When / at what trigger: _______________ Where / in what system: _______________ How often: _______________ Instead of (the behaviour it replaces): _______________

The one-sentence version:[Who] will [do what] when [trigger], instead of [current behaviour].”

⚠️ Always name what it replaces. Change plans routinely add behaviours without removing any. People’s days are already full — if you don’t specify what stops, the new behaviour gets added to an overflowing plate and dropped first under pressure. “What comes off the list?” is a legitimate and powerful question to put to a sponsor.


Prioritising to the vital few

You will start with fifteen candidate behaviours. Cut to five, ideally three. Score each 1–5:

Behaviour Impact if adopted Feasibility Frequency Visibility to others Total
           
           
           
  • Impact — how much of the outcome does this one behaviour deliver?
  • Feasibility — how movable is it, given the barriers?
  • Frequency — daily beats quarterly (more chances to build habit)
  • Visibility — can others see it? Invisible behaviours don’t spread (Diffusion of Innovations)

Pick the highest total, not the highest impact. A moderately important behaviour you can actually shift beats a critical one you can’t. Early wins fund the harder ones.


Turning a culture aspiration into behaviours

Use this in a workshop. Take the aspiration and ladder it down:

"We want a culture of accountability"
        ↓  What would I SEE?
"People flag problems early rather than at the deadline"
        ↓  Who, specifically? When?
"Team leads raise at-risk items in Monday stand-up, in week 1 of a slip,
 not week 3"
        ↓  What replaces what?
"Instead of managing it quietly and escalating when it's unrecoverable"
        ↓  What has to be true for that to be safe?
"A team lead who flags early is thanked, not questioned — by their manager,
 in the room, the first time it happens"

That last rung is the intervention. The culture aspiration was never actionable; the last line is, and it costs nothing.

Run this laddering live with a leadership team

Take their own culture words and ladder them down in front of them. It reliably produces the moment where a leader says “…ah, so it’s actually about what we do when someone brings us bad news.” That realisation is worth more than any deck.


The behaviours you’re implicitly asking of leaders

Every frontline behaviour has a leadership counterpart. Fill both columns or the frontline one won’t happen.

Frontline behaviour The leadership behaviour that makes it possible
Flag risks early Respond to the first early flag with thanks, publicly
Use the new system Ask for data only in the new system’s format
Bring blockers to stand-up Attend, and remove one blocker visibly
_____________ _____________

Take this table straight into Leader Behaviour Contract.


Behavioural Diagnosis Canvas · Intervention Design Worksheet · T — Behaviour Note

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Last updated: 11 August 2026