New customers arrive, revenue grows, and margin falls. The instinct is to raise prices or cut costs. Often the real cause is earlier: commitments were made without a capacity check, work was routed without a routing rule, and exceptions were absorbed by the same few people until they became the system.
Capacity is a decision, not a headcount number.
How many customers, at what complexity, with what handoffs, can the current team actually deliver well? If that question has no governed answer, every new sale is a capacity decision made by accident. Hiring then adds people to an ungoverned routing system, which multiplies the same exceptions.
Margin leaks at the handoffs.
Rework, repeated onboarding, manual reconciliation, and exception handling are rarely priced as work. They are absorbed as effort, so the company looks busy while margin quietly falls. Making that work visible — who does it, how often, and why — is usually the first step to stopping it.
Fix the routing before the resourcing.
Before adding headcount, define what work goes where, who owns each stage, what evidence is required to move forward, and what happens when capacity is exceeded. A company that can say no, or later, to a commitment on evidence grounds protects both margin and the customers it already has.