Corporate strategy

With the analysis done — the environment mapped, the organisation's capabilities graded — the work shifts from analysis to choice. Strategic choices happen at three distinct levels, each with its own decision-makers, its own question, and its own time horizon.

Confusing the levels is one of the most common strategy mistakes in practice — corporate leadership meddling in operational decisions, or business units making portfolio choices that belong with the board. This step sits at the top of the hierarchy: corporate-level strategy, the most consequential and the hardest to reverse. Entering a new industry or acquiring a business takes years to undo if it turns out to be wrong, which is why the analytical work had to come first.

At the corporate level the fundamental question is what direction the organisation should move in, and there are four broad answers. Every corporate-level decision fits one of them.

Most large Zambian organisations are combination strategists without labelling it. Zambeef invests aggressively in cold-chain capacity (growth) while running its retail outlets as mature steady earners (stability). First Quantum expands into new minerals and geographies while exiting mines that no longer cover their cost of capital (retrenchment). In a case answer, resist the urge to stamp one direction on a whole company — read the portfolio unit by unit.

Choosing growth still leaves the question of how. The four main growth paths carry very different risk profiles and capability requirements, roughly in rising order of distance from what the firm already knows.

Concentrated growth (intensification) focuses resources on profitable growth within the existing product and existing market. The logic is blunt: if the current market is not fully captured, why look elsewhere? Zambia's mobile money market ran on concentrated growth for years — MTN, Airtel and Zamtel fighting for the same customer base — until saturation pushed them toward new segments.

Market development takes an existing product into a new market — Zambian Breweries pushing distribution into rural areas or neighbouring countries. Product development launches new products for existing customers — a bank adding insurance and pensions for its account holders. Both are lower-risk than full diversification because the firm builds on something it already knows well: either the product or the customer.

• Vertical integration, backward: expand toward suppliers — Zambeef owning its feedlots, abattoirs and processing plants, controlling every stage from animal to packaged product.
• Vertical integration, forward: expand toward customers — a manufacturer opening its own retail outlets. Margin capture and direct customer relationships, at the risk that retail needs very different capabilities than manufacturing.
• Horizontal integration: acquire or merge with a competitor at the same stage of the value chain — Stanbic's acquisition of CFC Bank: same industry, same customers, merged for scale. The recurring risk is that integration costs and culture clashes destroy the value the deal was meant to create.

Diversification means entering a business genuinely new to the firm — different products, different markets, different competitive dynamics. It is the highest-risk growth path, and decades of research are humbling: most diversification moves destroy shareholder value. Done well, it can spread income across businesses and create value where real synergies exist — but "real" is the operative word.

Related (concentric) diversification enters businesses that share technology, customers, channels or brand with the core. The test is whether specific synergies exist — named cost savings or revenue gains that would not exist if the businesses were separate, not just the word synergy in a board paper. A Zambian bank entering asset management, insurance or stockbroking is the classic case: same customers, complementary products, shared compliance infrastructure.

Unrelated (conglomerate) diversification enters businesses with no strategic connection to the core. The only rationale is financial — the acquirer believes it can manage the target better than its current owners, or that cash flows from different industries reduce overall risk. It is notoriously hard to execute: running a mining company and a supermarket chain requires entirely different capabilities, and most large conglomerates eventually break up because the parts are worth more separately.

Every proposed diversification must pass all three. Zambeef's portfolio — beef, chicken, fish, retail, cold-chain logistics — reads as related diversification with genuine synergies: the cold chain and the shops serve every protein line at once. The parts of a portfolio that fail the better-off test are the ones a retrenchment review eventually finds.

An organisation running multiple businesses needs a way to decide where to invest, where to harvest, and where to exit. The BCG growth-share matrix maps every business unit on two dimensions — market growth rate and relative market share — producing four quadrants with distinct strategic logic.

Apply it to Zambian Breweries. Mosi Lager — dominant share of a mature mass market — is the classic cash cow, the earnings engine. Eagle and Rhino, the affordable sorghum beers, sit between cow and star depending on how fast that segment grows. The premium imported brands it distributes — low share of an emerging segment — are question marks: invest seriously in premium positioning, or leave the segment to independents. The matrix's real output is that sentence — a capital-allocation argument per unit.

Use it with its limits in view. The matrix assumes market share drives profitability (through experience-curve effects) and that high-growth markets are always worth entering — neither is universally true. Treat BCG as the starting framework for the portfolio conversation, and let the three diversification tests keep the final say on any entry or exit.