Lead To Grow podcast

Why Your Favourite Candidate Is Often the Wrong Hire

09/11/2026
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Should you use psychometric testing for recruitment? In this episode of Lead to Grow, Tommy Sim of Inject HR takes a real hire, an operations manager and first 2IC, and shows how a personality assessment predicts job performance far better than a resume, an interview or gut feel.


You will learn how the OPQ from SHL measures natural energy and preference, why reading several traits together is where the prediction comes from, and how to avoid hiring the candidate who interviews best but does the job worst.


In This Episode

  • Why resumes and interviews fail to predict who will perform in the role

  • What the OPQ personality questionnaire actually measures

  • How to define the three things a role really lives on

  • Reading the people, detail and deadline traits together

  • The “perfect storm” profile and why context decides everything

  • A real example: hiring a production supervisor from outside the industry

  • Three candidates compared: Joe, Riley and Kim

  • How to confirm a profile with a behavioural interview and debrief

  • Why a good test is hard to game

  • Adding inductive reasoning to cover both “will they” and “can they”

  • Using the same profile to onboard and develop your new hire


Who This Is For

Founders, business owners, hiring managers and HR leads who are about to make an important hire, especially a first 2IC or operations manager.


Key Takeaway

Test for the job you actually have, not the resume you are impressed by. Define the role first, read the person against it, and use the profile as a hypothesis to explore, not a verdict.


Your Turn

What is the worst hire you have made that looked perfect on paper? Share it in the comments, no names. What did the resume miss?


A Note on Advice

Psychometric tools are specialist instruments. You need accreditation and experience to run and read them well, which is why it pays to work with an accredited practitioner rather than a random online test. Done badly, they are worse than useless. This episode is general information, not advice for your specific situation.


About Inject

Inject HR is an Australian firm providing people capability and HR advisory for growing businesses. Website: https://www.inject.com.au/ 


About Lead to Grow

Lead to Grow is a podcast about leadership, hiring and growing great teams, hosted by Tommy Sim. Leadership doesn’t grow by accident. It grows because you choose to work on it.

New episodes come out regularly, so follow wherever you listen.



psychometric testing for recruitment, psychometric testing, OPQ personality questionnaire, SHL OPQ, personality assessment for hiring, how to hire the right person, hiring an operations manager, hiring a 2IC, recruitment mistakes, bad hires, predicting job performance, behavioural interview, inductive reasoning test, Inject HR, Tommy Sim, Lead to Grow


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