Nobody Taught Them to Interview: The Case for Training Hiring Managers
Think about the last person promoted into a hiring manager role at your company. They earned it: strong at their craft, trusted by their team, ready for more responsibility. And then, almost overnight, they were handed one of the highest-stakes tasks in the business: deciding who gets hired. The question worth asking is simple. Did anyone ever actually teach them how to interview?
For most organisations, the honest answer is no. We treat interviewing as something people just know how to do, a natural by-product of being senior enough to sit on the other side of the table. But interviewing is not an instinct. It's a skill. And like any skill, left untrained, it tends to be done badly without anyone noticing.
Interviewing Is a Skill, Not a Personality Trait
We invest heavily in the parts of hiring that are easy to see. Job ads, sourcing tools, applicant tracking systems, employer branding. Then we take the single moment where the actual decision gets made, the interview itself, and hand it to people we've never trained for it.
The result is predictable. Interviews that wander. Questions invented on the spot. A manager who talks for forty of the sixty minutes and then wonders why they didn't learn much about the candidate. Two interviewers in the same loop assessing completely different things, because no one agreed in advance what "good" looks like.
None of this comes from a lack of intelligence or effort. It comes from a lack of training. Nobody showed these managers how to structure a conversation, how to probe an answer, how to separate signal from charisma. So they fall back on the only thing they have: instinct. And instinct, in interviewing, is mostly bias wearing a confident face.
What Untrained Interviewers Quietly Cost You
The damage from poor interviewing is rarely obvious, because the alternative outcome is invisible. You never see the great candidate you passed on, or the mediocre one you talked yourself into.
- Inconsistent decisions. When every manager runs their own version of an interview, you're not comparing candidates, you're comparing interviewers. The process measures the room, not the person.
- Gut feel dressed up as judgement. "I just had a good feeling about them" is how the halo effect, similarity bias, and first-impression errors sneak into hiring. Untrained interviewers mistake comfort for competence.
- A worse candidate experience. Strong candidates can tell when an interviewer is unprepared or improvising. A sloppy interview is a direct message about how the company operates, and the best people are paying attention.
- Real legal and brand exposure. Inconsistent, unstructured questioning isn't just ineffective; in many markets it's a compliance risk. Trained interviewers know which questions build signal and which ones create liability.
Each of these is survivable on its own. Together, across hundreds of interviews a year, they compound into a quiet tax on the quality of every team you build.
What Good Interview Training Actually Looks Like
The encouraging part is that interviewing responds extraordinarily well to training. This isn't soft, abstract development. The gains show up fast and are easy to feel. Effective interview training for hiring managers tends to focus on a few concrete shifts:
- Structure over spontaneity. Agreeing the must-have competencies before the interview, and asking every candidate comparable questions, so decisions rest on evidence rather than rapport.
- Better questions, better listening. Moving from hypotheticals to behaviour (what someone actually did, not what they say they'd do), and learning to stay quiet long enough to hear the real answer.
- Naming the biases. You can't switch bias off, but managers who can recognise it in the moment make measurably fairer, sharper calls.
- Calibration and feedback. Scoring against a shared standard, then comparing notes as a panel, so the bar stays consistent from one hire to the next.
- Practice, not theory. The skill is built through mock interviews, observation, and honest feedback, the same way any other capability is developed.
Notice what this isn't: a one-hour slide deck that everyone forgets by the following week. Interviewing improves the way any craft improves: through deliberate practice and coaching, repeated until the good habits become the default.
The Highest-Leverage Hour in Your Business
It's worth sitting with the maths for a moment. A single hire might cost tens of thousands in salary, and far more in the impact, good or bad, they have on a team. The interview is the hinge that decision turns on. Yet the people swinging it are, more often than not, completely self-taught.
Few investments in hiring offer a better return than making your interviewers genuinely good at interviewing. It doesn't require new technology or a bigger budget. It requires treating interviewing as the trainable, improvable skill it has always been, and giving the people who do it the structured support they were never offered.
The companies that pull ahead in hiring aren't necessarily the ones with the cleverest tools. Often they're simply the ones who decided that the most important conversation in the building was too important to leave to chance.