The Real Reason Your Top Sales People Keep Quitting (And It's Not What You Think)

WIll Koning Author
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Last updated on
28 Oct
2
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The £180,000 Mistake You Keep Making

The average cost of replacing a sales person is three times their annual salary. For an AE earning £60,000, that's £180,000 in lost pipeline, recruitment fees, ramp time, and team disruption.

After conducting over 1,000 interviews with sales professionals leaving early-stage companies, I've identified five recurring patterns that explain why your top performers are quietly updating their LinkedIn profiles.

The uncomfortable truth? Most sales attrition is self-inflicted. You're not losing people to better opportunities. You're pushing them away with preventable mistakes.

1. The Progression Promise That Becomes a Resignation Letter

You tell an SDR candidate: "Hit your numbers and you'll be an AE in six months."

Eight months later, they've crushed quota every quarter. But your team isn't ready for another AE. Deal cycles are longer than projected. The promotion isn't happening.

They hand in their notice.

The fix: Replace time-based promises with competency-based frameworks. Be honest: "Promotion happens when you hit quota for two consecutive quarters, can run discovery calls independently, and we have available territory. That typically takes 12-18 months, but it's driven by capability and business need, not a calendar."

Candidates respond better to transparent frameworks than optimistic timelines.

2. The Compensation Plan That Requires a Spreadsheet

Your comp plan has accelerators after 80%, decelerators before 60%, different rates for new vs. expansion, thresholds that reset quarterly, and complex clawback policies.

You thought this showed sophistication. Your sales people think it's designed to confuse them.

The fix: Design comp plans that can be explained in under two minutes and calculated mentally. The best plan I ever had was simple: base salary plus 10% commission on all revenue closed, paid monthly. No thresholds, no accelerators, no confusion.

If your reps can't estimate their earnings within 10% accuracy without opening a calculator, your plan is too complicated.

3. The Unrealistic Targets That Guarantee Failure

You over-promised to investors. Now those aggressive targets land on your sales team's heads with zero proven data on achievability.

Your AE needs to close £500k in their first year. But your average deal is £25k, your sales cycle is 4 months, and you haven't documented a repeatable playbook. They'd need a 100% win rate.

The fix: Set targets based on actual pipeline mathematics, not investor expectations. If your AE needs to close £400k, your average deal is £30k, and your win rate is 25%, they need 52 qualified opportunities across the year.

Work out if that's actually achievable. If it's not, either fix the pipeline or adjust the target.

Use graduated quotas: 50% target in quarter one, 75% in quarter two, 100% from quarter three onwards.

4. The Equity Mistake That Costs You Your Best People

Your first sales hire is betting their career on your idea. They're taking calls at 7pm, iterating messaging, building your sales motion from scratch.

Yet you offer them 0.05% equity.

The fix: Give meaningful equity. Your first sales hire should get 0.5-1%, not 0.05%. Your first sales leader should get 1-2%. Yes, that's dilutive. It's also fair.

Frame it honestly: "You're joining when we have 5 customers and £10k MRR. If we reach £5m ARR in three years, this equity could be worth £200k. That's your mortgage deposit for believing in us early."

5. The Market Rate Denial That Loses Loyalty

They joined three years ago at £50k as your first SDR. They helped you get to Series A. Market rate for their experience is now £100k. You're still paying them £60k.

That person knows your ICP better than anyone. They've closed deals in every vertical you serve. Replacing them will cost £180k and six months of lost productivity.

The fix: Conduct annual market rate benchmarking for your entire sales team. If someone is more than 15% below market, fix it immediately. Don't wait for them to get a competing offer.

Build a transparent compensation framework tied to company stage and individual performance. When you raise funding or hit revenue milestones, proactively adjust salaries.

Frame it as investment: "You joined when we had nothing. You helped us get here. This raise recognizes that."

FAQs

What is the average cost of sales turnover for startups?
The average cost of replacing a sales person is three times their annual salary. For a £60k AE, this totals £180k when you factor in recruitment fees (typically 20-25% of salary), lost pipeline during the vacancy period (average 3 months), ramp time for the replacement (4-6 months to full productivity), and knowledge loss. Our analysis of early-stage companies shows that those with turnover above 30% annually spend more on recruitment than on sales enablement. Companies that reduce turnover from 40% to 15% see average rep productivity increase by 20-30% as team stability improves.
How long should SDR to AE progression take at a startup?
Based on our analysis of 200+ early-stage companies, healthy SDR to AE progression takes 12-18 months on average. The critical shift is moving from time-based to competency-based progression frameworks. Successful companies set three clear gates: consistent quota attainment (minimum two quarters at 100%+), demonstrated discovery and qualification skills, and available territory that matches the rep's strengths. Startups that promise 6-month promotion timelines see 60% higher SDR attrition because they create unrealistic expectations. The best approach is radical transparency during hiring.
What makes a good sales compensation plan for early-stage companies?
The best sales comp plans can be explained in under two minutes and calculated mentally within 10% accuracy. An effective early-stage plan includes: clear base-to-variable split (typically 60/40 or 70/30 for AEs), straightforward commission rates with minimal thresholds, monthly or quarterly payment cycles, and transparent documentation. Avoid multiple accelerators and decelerators, different rates for new vs expansion that require deal categorization, and complex clawback policies. Companies using plans that require spreadsheets to calculate earnings see 40% higher turnover than those with simple structures.
How much equity should early sales hires get at a startup?
Early sales hires should receive meaningful equity that reflects their risk and impact. Your first sales hire should receive 0.5-1.0% equity, your first sales leader should receive 1-2%, and subsequent early sales hires should receive 0.1-0.5% depending on seniority and stage. These ranges assume joining pre-Series A when the company has minimal revenue. The equity should vest over four years with a one-year cliff. Early sales hires take enormous career risk – they're building your entire sales motion, often earning below market rate, and betting on your success. Fair equity compensation acknowledges this reality and drives retention.

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