Service Delivery Contract Renewal & Total Cost Optimisation — Northern Ireland

Functional Topic

Strategic Sourcing, Should-Cost Modelling & Total Cost Optimisation

Industry

Telecommunications

Role

Category & Sourcing Manager — Contract Renewal & Negotiation

Duration

6 Months

The Challenge

BT Group was approaching the renewal of a multi-year service-delivery contract covering field operations in Northern Ireland. The incumbent arrangement had grown without a refreshed cost baseline — rates had been accepted historically, with limited visibility into the supplier's underlying cost build-up — and the renewal risked simply rolling forward inflated pricing. Leadership needed:

A defensible should-cost baseline to anchor the negotiation, rather than negotiating off last cycle's rates.
A total-cost view beyond headline day-rates — travel, mobilisation, SLAs, and rework were not being costed.
Savings without service disruption — hard-balling a regional incumbent risked field-service continuity.

My Role

I led the renewal end to end — building the should-cost model from first principles, constructing a total-cost-of-ownership view, defining the negotiation strategy and walk-away position, leading supplier negotiations, and securing ~£2M of total-cost optimisation while protecting service continuity.

The Approach

Rebuild the cost baseline — deconstructed the contract into a should-cost model (labour, productivity, materials, overhead, fair margin).
Build the total-cost view — added the costs the day-rate hides: mobilisation, travel, SLA penalties/credits, and rework.
Benchmark and size the gap — compared should-cost and TCO against the incumbent's quoted renewal.
Set the negotiation strategy — defined targets, walk-away, and a phased ask protecting continuity.
Negotiate to close — locked ~£2M of optimisation into the renewed contract.

The Analysis

Should-cost build-up vs. incumbent's quoted renewal

Indexed annual cost · Illustrative

So what: the gap wasn't in the labour rates — it was in overhead and margin above a defensible build-up. That's what made the gap negotiable rather than a market price.

Total cost optimisation — from quoted renewal to signed contract

£M, annual contract value · Illustrative

So what: the optimisation came from several levers, not one — the rate gap plus the costs the day-rate hid (travel, mobilisation, SLA, rework) added up to ~£2M.

Overhead and margin, not rates

Where the gap was

Should-cost showed the quoted renewal carried overhead and margin above a defensible build-up — the negotiable gap, not the labour rates.

Total cost > day-rate

The hidden costs added up

Mobilisation, travel, and rework added materially to true cost — pricing only the day-rate understated the optimisation available.

Continuity

Savings without disruption

A phased, evidence-led negotiation secured savings with the incumbent retained and no disruption to field service.

Results

~£2M total-cost optimisation locked into the renewed contract across multiple cost levers.
A defensible should-cost baseline the team can reuse to anchor future renewals.
Full total-cost visibility across rates, travel, mobilisation, SLAs, and rework.
Zero service disruption — savings achieved with the incumbent retained and continuity protected.

Renewals default to rolling forward last cycle's price. A should-cost baseline changes the conversation — anchoring negotiation on what the service should cost, not what it cost last time — and that is what turned a routine renewal into ~£2M of optimisation without touching service quality.

Illustrative & partly anonymized. BT Group is named as the engagement context; the supplier is withheld. The ~£2M reflects the engagement outcome; cost build-ups and the waterfall are directional and illustrate the method rather than report exact contract figures.