January’s here, which makes this the perfect time to address one of the most expensive biases in business. The fresh start effect—a behavioral science principle showing that temporal landmarks like New Year’s Day boost our motivation to change—gives us that extra push to tackle hard truths (Dai et al., 2014).
Here’s one worth facing: that charismatic candidate who crushed the interview? The rock star salesperson you just promoted to VP? The prestigious hire from your competitor? There’s a good chance you’re being fooled by a cognitive bias that’s been misleading decision-makers throughout history.
What the Halo Effect Really Costs You
The halo effect occurs when one positive trait creates a “glow” that influences how we judge everything else about a person. Psychologist Edward Thorndike identified this in 1920 when military officers rating their subordinates couldn’t separate attributes: soldiers who scored high on one quality were rated high across the board, regardless of actual performance (Thorndike, 1920).
For company leaders, this isn’t academic. Research shows 75% of hiring managers have made poor recruitment decisions due to the halo effect, costing organizations up to 30% of the role’s annual salary in lost productivity and turnover (Taggd, 2024). A few bad hires at the leadership level can derail your entire strategy.
Three Ways the Halo Effect Is Sabotaging Your Talent Decisions
The Charisma Trap
We’re wired to equate confidence with competence. But research shows extreme charisma can correlate with poorer leadership due to overconfidence and lack of operational focus (APA, 2017).
Elizabeth Holmes built Theranos into a $9 billion company on charisma alone. Her vision and persona entranced investors and board members—including seasoned executives—who overlooked the absence of a functioning product. The company collapsed, with Holmes convicted of fraud (Fitzpatrick, 2024). Charisma isn’t culture, and confidence isn’t a business model.
The First Impression Illusion
We form judgments within seconds to minutes, and your initial impression “sets up your subsequent beliefs” (The Decision Lab, n.d.-a). Interviewers frequently decide on a candidate within the first 5-15 minutes, long before substantive discussion occurs (Forbes, 2019).
Similarly, résumé halos mislead. A Stanford degree or Google experience creates assumptions of excellence that may not transfer. As one talent leader noted, pressure to hire from prestigious backgrounds often means overlooking candidates who might actually outperform the “halo résumé” hires (Paradis, 2024).
The Star Performer Delusion
Your top salesperson crushes their numbers, so you promote them to sales manager. Three months later, the team struggles and your star is miserable. Gallup found companies get managerial promotions wrong 82% of the time—most promote high performers rather than those with management talent (Miller, 2018).
Leadership consultant Jeff Miller notes organizations keep promoting their “Michael Jordans” when they need “Steve Kerrs”—people with the disposition to coach others, not just perform individually (Miller, 2018).
Why Smart Leaders Keep Falling for It
Four psychological mechanisms create the halo illusion:
Implicit Personality Theory: We assume positive traits cluster together. Confident and charismatic? Must be smart and hardworking too—despite zero evidence (Taggd, 2024).
Fundamental Attribution Error: We overestimate personal qualities and underestimate situational factors. That VP who led a successful product launch? Maybe they had a great team and market conditions—but we credit their genius entirely (The Decision Lab, n.d.-b).
Affect Heuristic: Feelings drive decisions more than analysis. When a candidate makes you feel good, that emotion colors your perception of their competence (The Decision Lab, n.d.-c).
Confirmation Bias: Once a halo forms, we seek confirming evidence and ignore contradictions. After hiring a star employee, you’ll overlook complaints and rationalize their mistakes.
The Real Damage: Culture, Strategy, and Your Bottom Line
The halo effect doesn’t just create bad hires—it erodes culture and strategy. Overvaluing charismatic “rock stars” who deliver results but bulldoze teams signals that outcomes trump integrity. This disproportionately drives out underrepresented employees, undermining diversity (Purushothaman & Stromberg, 2022).
WeWork’s Adam Neumann is a case study: his charisma convinced SoftBank to invest $4.4 billion after a 12-minute meeting. The halo kept scrutiny at bay while fundamentals crumbled, leading to a catastrophic IPO and $8 billion valuation crash (Sessa, 2021).
How to Break the Spell: Five Practical Strategies
- Structure Everything: Use standardized interview questions, scoring rubrics, and defined competencies. Structured interviews significantly reduce bias (Taggd, 2024). Rate candidates independently on specific criteria—don’t let one attribute contaminate others.
- Demand Multiple Perspectives: Diverse hiring panels catch what individuals miss. Gather feedback from peers, direct reports, and potential team members—not just the hiring manager.
- Prioritize Evidence Over Eloquence: Design work-sample tests that demonstrate actual skills. A candidate who interviews brilliantly but produces a mediocre product plan reveals a gap before you hire them.
- Slow Down and Challenge Your Gut: When immediately enamored with a candidate, play devil’s advocate. What might you be missing? Establish a norm that big decisions get checkpoints, not rubber stamps.
- Align Rewards with Values: Make collaboration, integrity, and people development explicit criteria for promotions. Use 360-degree feedback to ensure high performers who alienate others don’t advance on results alone.
Your New Year’s Challenge
As you step into 2026, ask yourself: Where might a halo be blinding me? Who on my team looks great because of one quality while struggling elsewhere? What assumptions about that impressive candidate haven’t I verified?
The halo effect is insidious because it feels right. That charismatic leader seems destined to crush it. That prestigious hire appears brilliant. But “seems” and “appears” are where expensive mistakes hide.
Organizations that win long-term value substance over sparkle, evidence over eloquence, and proven capability over projected potential. They build cultures where integrity matters as much as results, where diverse perspectives prevent groupthink, and where no single person’s charm overrides data and due diligence.
This year, commit to seeing your talent clearly—strengths, weaknesses, and all. Your bottom line will thank you.
About Rich Smith: Rich Smith is an executive advisor, behavioral marketing strategist, investor, and CMO known for helping leaders finally understand not only what strategies work, but why. With three decades of experience leading growth across financial services, healthcare, technology, and consumer brands, Rich has guided companies through crises, rebuilt brands from the ground up, and helped position organizations for nine-figure exits. Connect with him on LinkedIn, at RichSmith’s.blog, and The Revenue Science Podcast.
American Psychological Association (APA). (2017, May 8). Charismatic leaders: Too much of a good thing? https://www.apa.org/news/press/releases/2017/05/charismatic-leaders
Dai, H., Milkman, K. L., & Riis, J. (2014). The fresh start effect: Temporal landmarks motivate aspirational behavior. Management Science, 60(10), 2563–2582. https://doi.org/10.1287/mnsc.2014.1901
Fitzpatrick, C. D. (2024, December 17). The Theranos scandal: A $9 billion mirage exposing flaws in the venture capital system. Planet Compliance. https://www.planetcompliance.com/financial-compliance/the-theranos-scandal-a-9-billion-mirage-exposing-flaws-in-the-venture-capital-system/
Forbes. (2019, October 29). Yale exposes new bias that judges interviewees within first few seconds of interview. https://www.forbes.com/sites/heidilynnekurter/2019/10/29/yale-exposes-new-bias-that-judges-interviewees-within-first-few-seconds-of-interview/
Miller, J. (2018, May 2). Stop putting star performers in management roles. Chief Learning Officer. https://www.chieflearningofficer.com/2018/05/02/stop-putting-star-performers-management-roles/
Paradis, T. (2024, December 8). The “halo effect” is compelling but can be risky for both employers and job seekers. Business Insider. https://www.businessinsider.com/halo-effect-resumes-applicants-employers-wrong-choice-hiring-2024-12
Purushothaman, D., & Stromberg, L. (2022, April 20). Leaders, stop rewarding toxic rock stars. Harvard Business Review. https://hbr.org/2022/04/leaders-stop-rewarding-toxic-rock-stars
Sessa, A. (2021). Fall from grace: What happens when charismatic CEOs crash? Rice Business Wisdom. https://business.rice.edu/wisdom/features/charismatic-founder-ceos-behavior
Taggd. (2024, August 5). The halo effect in hiring: Are you choosing likeable over capable? Taggd HR Glossary. https://taggd.in/hr-glossary/halo-effect-in-hiring/
The Decision Lab. (n.d.-a). First impression bias. https://thedecisionlab.com/reference-guide/psychology/the-first-impression-bias
The Decision Lab. (n.d.-b). Fundamental attribution error. https://thedecisionlab.com/biases/fundamental-attribution-error
The Decision Lab. (n.d.-c). Affect heuristic. https://thedecisionlab.com/biases/affect-heuristic
Thorndike, E. L. (1920). A constant error in psychological ratings. Journal of Applied Psychology, 4(1), 25–29. https://psycnet.apa.org/record/1920-10104-014
