Insights — B2B Lead Generation & Prospecting — 3 min read
Hire Another BDM or Outsource Prospecting? A Commercial Comparison
Hiring another Business Development Manager (BDM) is the default choice for growth, but it is often the most expensive way to solve a pipeline problem.

In short
The choice depends on your bottleneck. If you need someone to close deals and manage accounts, hire a BDM. If you need more opportunities for your existing closers, outsourcing prospecting or hiring a dedicated Sales Development Representative (SDR) is usually more cost-effective. A BDM is a high-cost resource often wasted on manual prospecting; outsourcing provides a variable-cost alternative to build the top of the funnel without the overhead of a full-time hire.
When a B2B sales pipeline stalls, the reflexive response is to hire another Business Development Manager (BDM). If you have more leads than you can handle, that is the right move. If you have plenty of capacity but not enough conversations, hiring a full-cycle salesperson is often an expensive mistake.
Deciding between hiring and outsourcing requires looking at the total cost of ownership and the specific gap in your sales process.
The real cost of a BDM in the UK
Business owners often compare the cost of outsourcing to the base salary of a new hire. This significantly underestimates the internal cost. A BDM is one of the most expensive roles to maintain correctly.
| Cost Component | Estimated Annual Impact (Hypothetical) | Note |
|---|---|---|
| Base Salary | £50,000 | Market rates vary by sector and region |
| Employer NI & Pension | £8,000 - £10,000 | Statutory contributions |
| Commission / Bonus | £15,000 - £30,000 | Variable based on performance |
| Car Allowance / Travel | £5,000 - £8,000 | Fuel, insurance, and vehicle |
| Sales Tech & Data | £3,000 - £6,000 | CRM, LinkedIn Sales Navigator, lead data |
| Recruitment Fee | £7,500 - £12,500 | One-off (typically 15-25% of salary) |
| Management Time | Significant | Training, reporting, and coaching |
| Mis-hire Risk | High | The cost of 6 months' salary + lost opportunity |
When a BDM spends 50% of their time researching companies and finding phone numbers, you are paying 'closer' rates for 'researcher' tasks. This is where the commercial argument for outsourcing or a junior SDR becomes clear.
SDR vs BDM vs Outsourced Prospecting
Understanding the different models helps identify which fits your current growth stage.
| Feature | Internal SDR | Internal BDM | Outsourced (e.g. Evans OE) |
|---|---|---|---|
| Primary Focus | Generating appointments | Closing and account growth | Identifying & starting conversations |
| Typical Cost | Medium (Salary + Overhead) | High (Salary + Comm + Overhead) | Low to Medium (Fixed monthly) |
| Management | High (Requires daily coaching) | Medium (Requires strategy/KPIs) | Low (Output-driven) |
| Flexibility | Low (Notice periods) | Low (Notice periods) | High (Rolling contracts) |
| Best For | High-volume outreach | Complex, long-cycle closing | Consistent, researched pipeline |
When to hire an SDR instead of a BDM
If your senior sales team is 'too busy to prospect' but has capacity to attend more meetings, you don't need another closer. You need an SDR. A Sales Development Representative focuses purely on the top of the funnel: identifying prospects, making initial contact, and booking meetings.
UK SDR salaries vary significantly by location and industry; we suggest checking current salary surveys for your specific niche. Generally, an SDR costs less than a BDM but requires more intensive management and training, as the role is often an entry-level sales position.
When outsourcing prospecting is the better choice
- Testing a new market: If you are entering a new sector or territory, outsourcing allows you to validate demand without a permanent hire.
- Lack of internal management: Salespeople need managing. If the MD is currently the Sales Director, they rarely have time to coach a junior SDR.
- Data and research capability: Outsourced partners often have better access to commercial intelligence and 'buying signals' than an individual internal hire.
- Speed to market: An outsourced service can often start within weeks, whereas recruitment and ramp-up for a BDM can take six months.
If you decide that a permanent internal hire is the right long-term move, working with a specialist recruitment partner ensures the role specification matches the commercial reality of your market.
The Evans Perspective
Evans Opportunity Engine is designed to bridge this gap. We provide the intelligence and early outreach that an SDR would do, but at a lower cost than a full-time hire and with greater commercial depth. Intelligence (£695 + VAT/month) provides the researched opportunities; Managed (£1,295 + VAT/month) runs the initial outreach for you.
Not sure whether you need research or someone to start the conversations?
Opportunity Engine Intelligence (£695 + VAT/month) finds and researches the opportunities for your team to act on. Managed (£1,295 + VAT/month) also runs the early outreach and hands over qualified conversations. Initial three-month term.
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