HookThe £6.4bn loss that made Tesco pick a lane
In September 2014, Tesco admitted it had overstated its profits by roughly £250m — a figure later revised upwards. Seven months on, it posted a statutory pre-tax loss of £6.4bn, at the time one of the largest in UK corporate history. The business had not suddenly forgotten how to sell groceries; it had spent a decade pursuing too many objectives at once. Previous management had chased international expansion (the US, China, South Korea), diversification (a bank, a streaming service called Blinkbox, the Giraffe restaurant chain, Harris + Hoole coffee shops) — all while Aldi and Lidl quietly took its core UK customers.
The new chief executive, Dave Lewis, then ran the entire B3.1 playbook in public. Restate the mission — ‘Serving Britain's shoppers a little better every day’. Set narrow, measurable corporate objectives: rebuild the operating margin to 3.5–4% by 2019/20, generate cash. Let strategy follow: sell or close everything that did not serve the core, from Blinkbox to the South Korean business (sold for roughly £4bn), and defend UK price competitiveness — eventually through the 2020 Aldi Price Match. The margin target was broadly hit on schedule. Every model in this section — objectives hierarchies, Ansoff, Porter, SWOT, PESTLE — is a different lens on that one question: what is this business actually for, and what should it therefore stop doing?
ModelFrom mission to objectives to strategy — the hierarchy that keeps decisions honest
The chain runs: mission (why the business exists) → corporate objectives (measurable, time-bound targets for the whole business) → strategy (the long-term plan that commits major resources to hit them) → tactics (short-term, cheap, reversible moves). A good corporate objective is SMART — Lewis's Tesco is the clean example: a 3.5–4% group operating margin by 2019/20 and a cumulative retail cash-generation target of around £9bn. Compare that with the pre-crisis era, where ‘growth’ meant everything and therefore disciplined nothing.
The distinction Edexcel pays for is strategy versus tactics. A strategic decision is hard to reverse and reshapes the firm's human, physical and financial resources: selling a whole overseas division, closing a head office, building a distribution network. A tactic — a price promotion, a seasonal range — can be unwound by Friday. That resource test is the one to apply in the exam: when Tesco sold Homeplus, thousands of jobs, dozens of stores and £4bn of capital were redeployed. No promotion does that.
ModelAnsoff's Matrix — four directions of travel, four sizes of risk
Igor Ansoff's 1957 matrix crosses products (existing/new) with markets (existing/new). Market penetration — existing product, existing market — is the lowest-risk quadrant: sell more to people you already understand. Product development takes a new product to your existing market; market development takes your existing product somewhere new; diversification — new product, new market — is the highest-risk corner, because none of your existing knowledge fully applies.
The matrix's real lesson is that risk rises with distance from what you already know. Firms systematically overestimate how well their competence travels: retail skill in Hertfordshire is not retail skill in California, and running supermarkets is not running a streaming platform. Use the matrix to name the risk a strategy carries, then judge whether the firm's resources and experience justify carrying it.
Classify four real Tesco moves. Aldi Price Match (2020): existing products, existing customers — market penetration. Expanding the Finest premium range: new products for existing shoppers — product development. Homeplus South Korea: the existing supermarket offer in a new country — market development. Blinkbox streaming: new product, new market — diversification. Now notice the pattern: the two ventures furthest from the top-left corner failed hardest. Blinkbox was sold off in 2015, and the US chain Fresh & Easy (market development, 2007–2013) was abandoned after losses of roughly £1bn. That is the matrix doing its job — predicting where risk concentrates.
ModelPorter's Strategic Matrix — pick a source of advantage, or lose to those who did
Michael Porter's generic strategies say competitive advantage comes from one of two sources — cost leadership (the lowest costs in the industry, so you win on price and still profit) or differentiation (an offer customers will pay a premium for) — pursued either broadly or in a narrow niche (focus). Aldi is the UK's cost-leadership case study: a couple of thousand product lines against tens of thousands in a large Tesco, roughly 90% own-label, small stores, brutally fast checkouts. Every design choice removes cost. Waitrose and M&S Food sit at the other pole: differentiation through quality perception, earning a price premium.
Porter's warning is being stuck in the middle — no cost advantage, no compelling difference. That was the Big Four's diagnosis in the mid-2010s. Tesco's first response, the Jack's discount chain (2018–2022), failed: a subscale discounter could not out-Aldi Aldi on buying power. What worked was a hybrid built on genuine strengths — Aldi Price Match on hundreds of essentials to neutralise the cost leader, plus Clubcard Prices using loyalty data Aldi cannot match. In evaluation, ask: what does this firm have that its rival structurally cannot copy?
ModelSWOT — the audit that only works if you tell the truth
SWOT splits the firm's position into internal factors you control today — strengths and weaknesses — and external factors happening to you — opportunities and threats. Tesco's 2015 sheet writes itself. Strengths: market share still approaching 30%, an unrivalled store network, Clubcard's customer data. Weaknesses: a bloated product range, trust damaged by the accounting scandal, net debt around £8.5bn. Opportunities: online growth, convenience formats, wholesale (realised in the £3.7bn Booker takeover, completed 2018). Threats: discounter expansion, price deflation, changing shopping habits.
Two exam-grade points. First, SWOT is an input, not an answer — strategy comes from the matching: pair a strength with a threat (Clubcard data versus discounters gives you Clubcard Prices) or a strength with an opportunity (store network plus online gives you click-and-collect). Second, SWOT is only as good as its honesty. Pre-2014 Tesco's problem was precisely a flattering self-audit — weaknesses reclassified as strengths until the accounts forced the truth. If a data-response SWOT looks rosy, say so: that is evaluation.
ModelPESTLE and the Five Forces — reading the weather you don't control
PESTLE scans the macro-environment: Political (post-Brexit customs friction on EU food imports), Economic (CPI inflation peaking at 11.1% in October 2022, squeezing grocery volumes), Social (the shift to home delivery and convenience), Technological (self-checkout, online fulfilment), Legal (National Living Wage rises, the Groceries Supply Code of Practice), Environmental (the 2022 Plastic Packaging Tax). The trap is treating it as a list to recite; the marks come from tracing ONE factor through to the firm's costs, revenues or strategy.
Porter's Five Forces (1979) explains why some industries are structurally more profitable than others: competitive rivalry, threat of new entrants, buyer power, supplier power and the threat of substitutes. Run UK groceries through it — rivalry intense, buyers face zero switching costs, entry proved viable by the discounters' store rollout, suppliers mostly weak (farmers), substitutes multiplying (takeaway, meal kits) — and the industry's thin margins, roughly 3–4% for the best operators, stop being a mystery. The evaluative twist worth writing: external influences hit every rival too. Advantage is relative — inflation hurt all grocers, but it drove customers towards the cost leaders.
VocabularyKey terms the mark scheme pays for
TrapsMisconceptions that cost marks
ExamWhat examiners want
Theme 3 is examined on Paper 2 (with Theme 2) and again synoptically on Paper 3, where the pre-released context names the industry in advance. Models only score when they are PLACED: ‘this is market development, because the product is unchanged but the geography is new’ beats a drawn matrix with no firm located in it. Examiners' reports repeatedly note candidates who describe Ansoff or SWOT generically and cap at the lower levels — one quadrant, justified from the case, is worth more than four quadrants defined.
On 12-mark ‘assess’ and 20-mark ‘evaluate’ questions, build the standard chain — knowledge, application, analysis, evaluation — and make the evaluation a supported judgement with a condition: ‘penetration is the better strategy provided the market is not saturated; if it is, product development justifies its higher risk’. A strategy recommendation without an ‘it depends’ clause is a Level 2 answer wearing a Level 4 question. And always steal the numbers in the extract: margins, market shares and growth rates are put there to be used, not admired.