Why Your Team Isn't Performing: It Might Be Your Mindset, Not Their Talent
- killes1
- Jan 22
- 3 min read
A Quick Read for Leaders Who Want Real Results
"I don't know what else to do with this person."I hear this from executives monthly. A senior manager isn't performing. You've given feedback, set clear expectations, maybe even put them on a development plan. Nothing's working.
Here's the uncomfortable question: Have you already decided they can't succeed?
Your Mindset Is Showing (And It's Tanking Performance)
Research proves what many leaders don't want to hear: your beliefs about someone's potential
directly impact their performance.
The landmark 1968 Rosenthal-Jacobson study told teachers that certain students were "intellectual bloomers." These students were actually selected randomly—no more gifted than their peers. By year's end? Significant IQ gains. The only variable: teacher expectations.
This "Pygmalion Effect" happens in your organization right now. When you believe someone can't grow, you:
Give them less challenging assignments
Offer less developmental feedback
Show impatience in meetings (even unconsciously)
Create fewer growth opportunities
They sense it. They respond accordingly. Your prophecy fulfills itself.
The Growth Mindset Isn't Optional for Leaders
Stanford psychologist Carol Dweck's research shows people with growth mindsets—those who believe abilities develop through effort—consistently outperform equally talented peers with fixed mindsets.
For leaders, this isn't just personal. Your mindset is organizational strategy.
Why Smart Leaders Still Struggle With This
Your brain is working against you:
Confirmation Bias: You see evidence supporting your existing beliefs while ignoring contradictions. Decided someone "isn't strategic"? Watch how you'll notice every tactical misstep and miss their strategic wins.
Illusion of Competence: Reading this article makes you feel like you've mastered growth mindset. You haven't. (Sorry.) Exposure to information ≠ behavior change.
The 66-Day Reality: Forget the myth about 21 days to form habits. Research shows it takes an average of 66 days—and up to 254 for complex behaviors. Real mindset shifts take months, not moments.
What Actually Works: The Executive Version
Diagnose your fixed-mindset triggers:
Which team members trigger your impatience?
Where do you think "they'll never get it"?
What abilities do you consider unchangeable?
Design new thinking patterns:
Add "yet" to your vocabulary ("They're not ready for this role yet")
Reframe "failed" to "hasn't figured it out yet"
Actively seek evidence that contradicts your limiting beliefs about people
Before meetings with struggling performers, consciously reset your expectations
Deliver sustained practice:
Schedule weekly 15-minute reflection: "Where did I see growth I almost missed?"
Get an accountability partner who'll call out your fixed-mindset moments
Pick ONE person you've written off and deliberately look for their growth edge
Commit to 90 days of consistent practice (mark your calendar)
The ROI of Mindset Work
In small to midsize companies, every leader's impact is magnified. You can't afford to:
Write off talent prematurely in tight labor markets
Create cultures where people hide mistakes and avoid challenges
Miss the potential sitting right in front of you
Your mindset about your people's potential might be the biggest constraint on your company's growth.
The Bottom Line
That underperforming team member? Before your next conversation with them, ask yourself:
Have I already decided they can't succeed?
Am I creating conditions for their growth or confirming my doubts?
What would change if I genuinely believed they could develop?
Your answers matter more than their latest performance review.
Mindset work isn't quick. It isn't easy. But it's the highest-leverage leadership work you can do.
Want to explore how fixed mindsets might be limiting your team's performance? Let's connect for a complimentary 15-minute consultation.
invested in your success,
Kristen Illes, Founder and Strategic Growth Advisor
3D Leadership Solutions
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