ACCA Strategic Professional · Strategic Business Leader

Managing strategic change: formula sheet

Full chapter guide

Key formulas

Adaptation: Realignment + Incremental; Small steps, one part at a time, within the existing paradigm. Lowest disruption. Suits a stable, healthy organisation with time.
Reconstruction: Realignment + Big bang; Whole organisation at once, usually fast and often painful, paradigm kept. Can suit a crisis or little time: restructuring, cost cuts, redundancies.
Evolution: Transformation + Incremental; Paradigm changes one part at a time. Needs time and a planned, sustained effort.
Revolution: Transformation + Big bang; Wide and deep change of culture and strategy across the whole organisation. High risk, high resistance. Can suit a crisis or little time.
Classification test: Nature of change (realignment or transformation) × Scope of change (incremental or big bang); Always state both dimensions when you name a type.
Eight contextual features: Time, Scope, Preservation, Diversity, Capability, Capacity, Readiness, Power; Memory aid: a TSP-DCCRP list. Use the case facts to rate each as high or low, then link it to a choice.
Four change paths: Adaptation = incremental + realignment; Reconstruction = big bang + realignment; Evolution = incremental + transformation; Revolution = big bang + transformation; Nature of change (incremental or big bang) and end result (realignment or transformation).
Change styles: Education and delegation → Collaboration → Participation → Direction → Coercion; Moving right means less involvement and more speed. Fit the style to time, power and readiness.
Logic of fit: Context features → design choices (path, start-point, style, target, levers, roles); Always justify a choice by a named feature from the scenario.
Lewin's three stages: Unfreeze → Change (move) → Refreeze; Unfreeze builds the need for change. Refreeze embeds it so people do not revert.
Force field balance: Change occurs when driving forces > restraining forces; Equilibrium holds when they are equal. Reducing restraining forces is often more effective than pushing drivers harder.
Kotter's eight steps: 1 Urgency; 2 Guiding coalition; 3 Vision; 4 Communicate vision; 5 Remove barriers; 6 Short-term wins; 7 Sustain acceleration (build on the change); 8 Anchor in culture; Wording varies by source. Learn the sequence and the purpose of each step. The match to Lewin's stages is approximate.
Cultural web elements: Paradigm; stories; symbols; power structures; organisational structures; control systems; rituals and routines; Use all elements that the scenario gives evidence for, not a memorised list for its own sake.
Kotter and Schlesinger: causes of resistance: Parochial self-interest | Misunderstanding and lack of trust | Different assessments | Low tolerance for change; Use these to diagnose why a named group resists before choosing a remedy.
Kotter and Schlesinger: six approaches: Education and communication | Participation and involvement | Facilitation and support | Negotiation and agreement | Manipulation and co-optation | Explicit and implicit coercion; Rough order from slow and low-resistance to fast and high-risk. Match to the situation.
Mendelow's matrix: High power + high interest = Key players | High power + low interest = Keep satisfied | Low power + high interest = Keep informed | Low power + low interest = Minimal effort; Power is the ability to influence. Interest is how much they care. Positions can move over time.
Spectrum of change styles: Education/delegation → Collaboration → Participation → Direction → Coercion; Moves from gentle and slow to forceful and fast. Participation sits between collaboration and direction in Balogun and Hope Hailey's model. Some texts merge it with collaboration.
Style selection factors: Style = f(time, scale, resistance, power, diversity, capability, survival at risk); This is a memory aid, not a mathematical formula. Use it to justify the style you choose with scenario facts.
Coercion fit: Coercion fits when: crisis + little time + strong resistance + manager has power; It is a last resort. It is not suitable for long-term change that needs commitment.
Collaboration fit: Collaboration fits when: time available + staff have useful knowledge + commitment is needed; Slow and costly in effort, but builds ownership.
Cultural web elements: Paradigm at the centre, surrounded by: Stories, Symbols, Power structures, Organisational structures, Control systems, Rituals and routines; Use all six when asked to analyse culture, but spend time on the ones that matter in the scenario.
Handy's four cultures: Power (Zeus) | Role (Apollo) | Task (Athena) | Person (Dionysus); Match the description in the scenario to the type, then judge fit with the change.
Paradigm: Paradigm = shared set of taken-for-granted assumptions about the organisation and its environment; A strong paradigm can cause strategic drift if the environment changes.
Change levers from the web: Change culture by changing stories, symbols, power, structure, controls and routines together; Changing one element alone rarely works because the others pull back to the old paradigm.
Earliest finish time (forward pass): Earliest finish = Earliest start + Duration; Earliest start of a task = the latest earliest finish among all its preceding tasks.
Latest start time (backward pass): Latest start = Latest finish − Duration; Latest finish of a task = the earliest of the latest starts of its following tasks. Start the backward pass from the programme end date.
Total float: Total float = Latest finish − Earliest start − Duration; Critical tasks have a total float of zero. The critical path is the chain of zero-float tasks.
Programme duration: Programme duration = Length of the longest path through the network; Only shortening tasks on the critical path shortens the programme, and only until another path becomes critical.

Quick revision

Change can be described by its scale (adaptation or transformation) and by its speed and nature (incremental or big bang).
Context matters: the right approach depends on time, scope, power, capabilities and the workforce.
Lewin's model has three stages: unfreeze, change, refreeze.
Force field analysis lists driving forces and restraining forces, and you can act on either set.
Resistance often comes from fear of loss, uncertainty, habit, or doubt about the reasons for change.
Identify stakeholders by power and interest, and plan how to engage each group.
Match the management style to the situation: more consultation takes longer, more direction is faster but risks resistance.
Leaders must set direction, communicate it and show visible commitment.
Culture can support or block change, so assess it before you plan.
A change programme needs clear goals, a timetable, responsibilities, resources, communication and monitoring.
Quick wins and early visible results help build momentum.
Always tie recommendations to the scenario facts and give reasons.

Common mistakes

Naming the type without justifying it from the scenario. Fix: Always quote at least two scenario facts, one on the end result and one on the scope.
Confusing reconstruction with revolution. Fix: Ask whether the culture and paradigm change. If only structures or costs change, it is reconstruction. If the paradigm changes, it is revolution.
Listing the eight features with textbook definitions only. Fix: Use each feature with a fact from the case and say what it means for the change. Application earns the marks.
Confusing the contextual features with the design choices. Fix: Keep two lists. Features describe the situation. Design choices (path, style, levers and so on) are your response to it.
Describing the models without applying them to the case Fix: Spend most of your answer on case facts. Every model point should name something from the scenario.
Listing forces without weighing them Fix: State which forces are strongest and what that means for the plan.
Listing Kotter and Schlesinger's six approaches without applying them Fix: Tie each approach to a named group in the scenario and explain why it suits them.
Treating all resistance as irrational Fix: Acknowledge that some resistance reflects valid concerns. Recommend listening and adjusting the plan where justified.
Listing the five styles with textbook definitions and no link to the case. Fix: Spend most of the answer on application. One short definition, then scenario evidence for or against the style.
Saying coercion is always bad. Fix: Explain when it can be justified, such as a crisis with little time. Then state the risks to morale and retention.

Exam tips

Always state both dimensions, nature and scope, when you label a change. A label alone earns little.
Use scenario evidence such as dates, job numbers and new strategy statements to show application and professional skills.
Evaluate, do not just describe. Say whether the type suits the context, and mention resistance and risk.
Link types to context and style. A strong answer connects the type to the kaleidoscope context and to a suitable management style.
If the scenario shows a mix, say so. Different parts of the organisation may undergo different types of change.
Do not write a feature-by-feature essay on all eight if the case gives facts for only some. Cover the ones with evidence and say which matter most.
Use case facts as evidence in every paragraph. Markers award marks for application, not definitions.
Show professional skills by weighing conflicts, such as speed against preservation, and reaching a reasoned recommendation.