Change diagnostics (Part B): When to use what (and how to sequence them)

Last week, Part A separated the tools by what they measure: leadership capability, change leadership behaviours, transition phase, reaction patterns, change style, and concerns.

This week, Part B turns that into a selection guide. The goal is to stay agnostic and practical: pick the right lens for the problem you're actually facing.

The quickest way to choose: what's the constraint?

Most change programmes stall for one (or more) of these reasons:

  • Leaders aren't driving change well (unclear direction, inconsistent follow-through)
  • Change champions aren't showing the right behaviours (poor comms, low involvement)
  • People are emotionally stuck (denial/resistance, low energy, cynicism)
  • People have specific concerns (impact, workload, competence, trust, personal risk)
  • Different change styles are clashing (pace, ambiguity tolerance, appetite for experimentation)


Here's how the tools map.

1) If the constraint is: Our leaders aren't effective change drivers

Use Change Management Effectiveness (CME)

Use CME when you need to build the capability of managers and leaders to drive change, not just communicate it.

Best-fit situations:

  • you're developing a cohort of managers who must deliver change as part of their role
  • you're building internal change leadership capability (beyond one programme)
  • you want a baseline for coaching and development planning


Why CME is the right lens: it focuses on the manager as a change driver and assesses competence across seven change management competencies.

Where CME isn't enough on its own: when adoption is blocked by employee concerns or transition fatigue. In that case, pair it with a people-side tool (see below).


2) If the constraint is: We need change leadership behaviours at every level

Use Leading Change at Every Level (LCEL)

Use LCEL when you want people throughout the organisation to lead change through visible behaviours  not just support it.

Best-fit situations:

  • you're building a network of change champions
  • supervisors and team leads are the real make or break for adoption
  • you want a shared behavioural standard for what good looks like


Why LCEL is the right lens: it measures five behaviours (modelling, communicating, involving, helping people break from the past, creating a supportive environment). Its a clean bridge to action planning.

Common pairing: LCEL + Change Abilitator (behaviours + concerns) when you want champions to respond to what people are actually worried about.


3) If the constraint is: People are stuck emotionally in the change

Use Mastering the Change Curve (MCC)

Use MCC when the organisation needs a shared map of transition and a way to normalise and move through the emotional phases of change.

Best-fit situations:

  • change was imposed (people didn't initiate it)
  • you're seeing cynicism, withdrawal, rumour, or passive resistance
  • you need a language for where are we right now?


Why MCC is the right lens: its explicitly built on Jaffe & Scotts four phases (Denial, Resistance, Exploration, Commitment) and treats negative reactions as normal and adaptive.

Where MCC can be misused: when the real issue is poor planning, unclear decisions, or lack of resources. Don't use a transition model to compensate for weak execution.


4) If the constraint is: We need to understand peoples reactions to organisational change

Use Change Reaction (CR)

Use CR when you want individuals (and groups) to recognise their approach to organisational change and plan more effective behaviour  and when you want to examine organisational support systems.

Best-fit situations:

  • you're running a change programme and want a structured diagnostic discussion
  • you want to surface patterns across teams (OD lens)
  • you want to help people plan coping behaviours and support needs


CR vs MCC in plain English:

  • MCC is a phase journey model (where am I on the curve?)
  • CR is a reaction pattern model (how do I tend to respond?)


5) If the constraint is: Different change styles are clashing

Use Change Management Predictor (CMP)

Use CMP early in a programme when you want to reduce judgement and help teams understand that different people have different preferred styles when confronted with change.

Best-fit situations:

  • teams are arguing about pace (move faster vs be cautious)
  • leaders assume resistance is attitude rather than style difference
  • you want managers to tailor how they involve and support different people


CMP is especially useful as a softener: it creates empathy and stops people pathologising each other.


6) If the constraint is: We need to know what people are worried about

Use Change Abilitator (CA)

Use Change Abilitator when you need to identify the concerns that will block adoption  including concerns people may not say out loud.

Best-fit situations:

  • you're planning a change and want to anticipate obstacles
  • you're mid-change and adoption is uneven across teams
  • you need to target comms and manager actions to what people actually care about


This tool is most powerful when you commit to action. If you ask people about concerns and then ignore them, you'll create a trust problem.

Without turning it into tool soup;

Sequence A: Capability first (leaders), then people-side

Change Management Effectiveness to build leader change-driver capability

Change Abilitator to surface employee concerns

Leading Change at Every Level to build champion behaviours that address those concerns

Sequence B: People are stuck (transition), then rebuild momentum

Mastering the Change Curve to locate people on the curve and normalise reactions

Leading Change at Every Level to equip local leaders with behaviours to move people forward

Change Abilitator to target the specific blockers

Sequence C: Style clashes are the issue

Change Management Predictor to reduce judgement and improve tailoring

Change Reaction to discuss reactions and support systems

Leading Change at Every Level to create consistent change leadership behaviours


None of these tools are best. Each owns a different space!

Pick the lens that matches the constraint.

Then, if needed, add a second lens to cover what the first one can't see.