Building a sales team is one of the highest-stakes things a SaaS company will ever do, and it is also one of the easiest to get wrong.
A single mis-hire can burn six months of runway, sour a promising territory and quietly cap your growth for a year. Yet most hiring mistakes are not the result of bad luck - they are predictable, repeatable and avoidable.
Below are the errors we see SaaS founders and revenue leaders make most often, and how to sidestep them before they cost you a quarter of pipeline.
Hiring for the stage you are leaving, not the stage you are entering
The sales rep who thrived selling your product at £5k ACV to SMBs is rarely the person who will win six-figure enterprise deals with procurement, security reviews and multi-threaded buying committees. SaaS companies routinely hire a mirror image of the team that got them to where they are, then wonder why the next stage of growth stalls. Before you write a job specification, be honest about the motion you are hiring into: deal size, sales cycle, buyer seniority and the degree of process versus improvisation required. A brilliant transactional closer can flounder in a consultative enterprise sale, and vice versa.
Prioritising industry experience over sales athleticism
It is tempting to insist that every candidate has sold your exact category before. In practice, deep domain knowledge is often learnable in weeks, whereas the underlying traits of a strong seller - curiosity, resilience, discipline and coachability - take years to develop and cannot be taught on the job. Screening solely for a familiar logo on a CV filters out high-potential athletes and crowds your shortlist with comfortable incumbents. Weight your assessment towards demonstrable outcomes and how a candidate thinks, not just the sector they happen to have worked in.
Skipping a structured, evidence-based interview process
Sales is the one function where candidates are, by definition, good at selling themselves. A charismatic interview performance tells you very little about quota attainment. SaaS teams that hire on gut feel are effectively rolling dice. A structured process - consistent competency questions, a role-play or mock discovery call, a written exercise, and reference checks that probe real numbers - turns a subjective impression into evidence. Ask for specifics: what was quota, what was attainment, what was the average deal size, and what exactly did the candidate do versus what the team did.
Hiring reps before the fundamentals are ready
Throwing bodies at a revenue gap rarely works if the groundwork is missing. If you do not yet have a repeatable, documented sales motion, reasonable inbound or outbound volume, and at least a rough playbook, new hires will spend their ramp inventing the role rather than executing it. The result is slow ramp, inconsistent messaging and early attrition. Founders often need to prove the motion themselves - or with one or two early sellers - before scaling a team. Hiring five reps into a vacuum multiplies the chaos rather than the revenue.
Underestimating ramp time and onboarding
Many SaaS companies budget for the hire but not for the ramp. A mid-market AE may take three to six months to reach full productivity, and enterprise reps longer still. If your financial model assumes a new rep contributes from month one, you will panic-manage people who are simply following a normal ramp curve, and you may cut them loose just before they would have started producing. Set realistic ramp milestones, invest in proper onboarding, and measure leading indicators - activity, pipeline created, discovery quality - not just closed revenue in the first quarter.
Neglecting the compensation and quota design
A poorly designed comp plan will undo even a strong hire. Quotas set without reference to realistic pipeline coverage demoralise good sellers; commission structures that reward the wrong behaviours pull the team away from your strategy. If top performers cannot see a credible path to accelerators, they will leave for a competitor who can offer one. Treat compensation as a core part of the hiring decision, not an afterthought bolted on once the offer is out.
Failing to sell the opportunity to the candidate
In a competitive market for GTM talent, the best candidates are interviewing you as much as you are interviewing them. SaaS companies that treat hiring as a one-way filter lose out to those who articulate a compelling mission, a credible growth story and a clear picture of earning potential. A slow, opaque or transactional process signals what it will be like to work for you. Move quickly, communicate clearly, and give candidates a reason to choose you beyond the base salary.
Going it alone when speed and quality both matter
Perhaps the most common mistake is assuming sales hiring is something to be squeezed in around everything else. Sourcing, screening and closing strong GTM candidates is a discipline in its own right, and doing it badly is expensive. Whether you build a dedicated internal function or partner with a specialist recruiter, the goal is the same: a rigorous, fast, evidence-led process that consistently lands sellers who ramp and stay.
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Reach out to a member of the team here, or see more about how we can support your growth here.
Iwan Robertson
Global Business Development Manager
