The supplier base as a competitive field
Supplier management is the discipline of shaping and steering the supplier base so that it works as a competitive field rather than a static list of contracts. A sound supplier strategy begins from a simple mechanism: every supplier trades off the probability of winning an award against the margin it can build into its price. The higher the price, the lower the chance of winning; the more contested the award, the slimmer the margin. A genuine monopolist escapes this logic and optimises profit alone. Between these poles lies the large, decisive middle ground. Crucially, the degree of competition is not set by the market alone. The number of potential bidders is a necessary first step, but not a sufficient one: the demand side — requirements, purchasing practices and behaviours — shapes how suppliers actually bid. Supplier strategy is the deliberate management of that field.
Resolving dependency and monopoly situations
Dependency on a single supplier is more common than most organisations would like, and handling it well sits at the core of any supplier strategy. The first task is analytical: is the monopoly genuine? A structured set of questions applies — are there substitutes or potential new entrants, can specifications be adjusted to open up alternatives, do make-or-buy scenarios exist, and how much demand power do you actually hold? Above all: which of this does the supplier know? A frequent error is to overestimate the other side's knowledge; suppliers often understand the real dependency less well than assumed. Where the questions reveal room for manoeuvre, the aim is to make alternatives credible — signalling that switching barriers are being dismantled, linking the negotiation to attractive additional business, or keeping make-or-buy visibly on the table. Only where the monopoly is genuine and known does a partnership-based approach remain, seeking to realise joint potential.
Preserving competition instead of building self-made barriers
Much of the competition a supplier strategy relies on is lost not to the market but to the buyer's own rules. As a rule of thumb, every rigid rule procurement sets for itself is a potential barrier to competition: it fixes a framework the market must optimise within, rather than letting the market help shape the optimal terms. Common self-made barriers include:
- Fixed sourcing rules, such as a blanket dual-source requirement, which fix risk first and optimise cost only within that frame — instead of negotiating both variants in parallel and letting the market price the risk premium.
- Premature supplier exclusion, where a knock-out criterion could often be replaced by a bonus-malus arrangement that keeps a challenger in play.
- Flat amortisation thresholds for switching costs, which belong in an individual delta assessment, not a rigid figure.
- Directed buy, unaligned cross-functions and last-call options, each of which quietly signals to incumbents that they are safer than the competitive situation warrants.
These barriers are self-made, and therefore fundamentally avoidable.
Getting started with a pilot project
Turning supplier strategy from principle into practice is best done through a contained pilot rather than a wholesale reorganisation. A handful of screening criteria indicate whether a category is suitable:
- Volume and complexity: a sufficiently large, well-specifiable negotiation where the expected savings justify the effort and suppliers are keen to win.
- Genuine competition: at least two suitable suppliers between whom volume can actually be shifted — shiftability, not merely a long bidder list.
- Internal alignment: stakeholders open to switching, and top management willing to commit to the defined mechanism and its outcome.
- Lead time: a project some months out, so the negotiation can be designed rather than retrofitted.
Where a market is shaped by collusion, that is an essential input rather than a disqualifier, and calls for a specific mechanism. A commitment to follow the rules is often easier in regulated settings, where the process must be laid out in any case. Structuring such a pilot rigorously is exactly where specialised procurement consulting comes in.
