Tech Lead Journal

Stop Telling Yourself You're Bad at “People Stuff”

53 snips
Feb 23, 2026
Martijn Versteeg, founder of Group Effort and former CPTO with a background in organizational psychology, explains people skills as predictable systems you can learn. He outlines a six-needs model for behavior, why common personality tests can mislead, a 10-second approach to deliver bad news, how to transition from coding to leadership, and the psychological risks of heavy AI use.
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INSIGHT

Six Needs Predict Team Behavior

  • Human behavior is predicted by six needs: certainty, variety, growth, status, connection, and giving.
  • Martijn used this model in COVID-era coaching and found three needs ≤5 often preceded people looking for new jobs.
ADVICE

Use Ratings In One-On-Ones To Spot Risk

  • Use the six-needs scale in one-on-ones by asking teammates to rate their experience and project trends.
  • Focus on any need rated ≤5 and ask what a 10 looks like to get concrete actions from the person.
INSIGHT

Personality Labels Often Do More Harm

  • Popular personality tools like MBTI and DiSC have poor internal validity and can entrench fixed labels.
  • Labels let people excuse behavior ("I am blue") and reduce willingness to change, harming growth.
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