Let us get this out of the way.
The best salespeople are difficult. Challenging. Disagreeable. The word that gets used most often, and the one I have had directed at me more times than I can count over thirty years, is asshole.
I take it as a compliment. Because if you understand sales at a behavioural level, you quickly realise something that runs directly against everything HR departments and culture consultants will tell you. The most effective closers are not agreeable people. They are the exact opposite.
The Science Underneath the Discomfort
Behavioural psychology has a well-established framework called the Big Five personality traits. One of those traits is agreeableness, which describes the tendency to prioritise harmony, avoid conflict, and orient your behaviour around making other people feel comfortable.
In plain language: being a nice guy.
Low agreeableness, being disagreeable, is one of the most consistently predictive traits of sales success. That is not an opinion or a hunch. It is the pattern that emerges when you look at the research on sales performance and personality. Counterintuitive? Perhaps. Incorrect? Not even a little.
What Agreeable People Do in Sales
The assumption built into most hiring processes is that likeable, warm, socially comfortable people make good salespeople. The logic feels sound. People buy from people they like. Therefore hire people who are easy to like.
The problem is that being liked and being effective are different vectors, and in new business development, cold outbound, enterprise deals, and aggressive growth situations, optimising for one actively undermines the other.
Here is what agreeable salespeople do in practice.
They discount too quickly. Not because the margin is not there, but because holding a position feels confrontational and confrontation feels bad. The moment a prospect pushes back on price, the agreeable salesperson starts looking for a number that makes the discomfort stop.
They give away too much in negotiations. They can see the other side’s situation, they feel the pressure the buyer is under, and they fold because folding resolves the tension. The deal closes but at the wrong number, and the pattern repeats indefinitely.
They hesitate to make cold calls. There is a genuine psychological cost to interrupting someone’s day uninvited and the agreeable salesperson feels that cost acutely. They over-prepare, they delay, they find reasons to send an email instead.
They get dominated in enterprise conversations. Senior buyers are often experienced, confident, and not particularly interested in making a salesperson feel comfortable. Agreeable reps read the power dynamic in those rooms and become deferential. Deferential does not close enterprise deals.
The People at the Top of Enterprise Organisations
This is the part of the conversation that tends to make people uncomfortable, so let us be direct about it.
The higher you go in large organisations, the more frequently you encounter people who score highly on what psychology calls the Dark Triad. Psychopathy, Machiavellianism, narcissism. These are not terms being used loosely. These traits are documented at higher rates in senior leadership than in the general population, and they tend to be rewarded in environments that require hard decisions, competitive positioning, and the willingness to prioritise organisational outcomes over interpersonal comfort.
These are the people your salespeople are trying to sell to.
They do not respond to warmth. They are not moved by a friendly SDR with a prepared smile and a follow-up email that opens with “just checking in.” They have seen every version of that approach and they are not impressed by any of them.
What they respond to is precision. Sharpness. Clarity. The sense that the person across from them knows exactly what they are offering, knows its value, and is not going to apologise for either. They respect competence and they recognise confidence. They react to someone who meets their energy rather than shrinking from it.
If you send an agreeable rep into that room, you are sending prey into a predator’s environment. The outcome is predictable.
What You Are Actually Building
Sales is a contact sport. It has always been one. The animal analogies, sharks, wolves, tigers, exist in sales culture because they reflect something real about the nature of the work. It is competitive, it is adversarial at moments, and it requires a tolerance for conflict that genuinely agreeable people do not have.
When you hire for agreeableness and cultural comfort, when you build a sales team by screening for team players who care deeply about being liked and never ruffle anyone’s feathers, you are not building a hunting ground. You are building a farm.
Farms are comfortable. Farms are harmonious. Farms do not consistently win enterprise deals against well-resourced competitors with experienced buyers at the table.
This does not mean you hire people who are abrasive with customers, who are difficult to manage for their own sake, or who treat internal relationships as irrelevant. It means you hire people who are genuinely comfortable with disagreement, who can hold a position under pressure, who do not need to be liked in order to perform, and who understand that closing a deal sometimes requires creating rather than avoiding tension.
Those people are harder to find. They are also the ones who build pipeline.
The Hiring Question
If you are building or rebuilding a sales function, the personality profiling you use in your hiring process matters more than most operators realise. Screening for cultural fit and agreeableness in a sales role is one of the most consistent ways to end up with a team that is pleasant to work with and chronically underperforms against target.
At Outsold we think carefully about this when we structure sales functions for founders who want to take the work off their plate. The people doing the work need to be built for the work. For more on how we approach that, and on the broader question of what a high-performance sales function actually looks like, there is more at www.outsold.com.au/blogs.
