519 :: How Smart Leadership Teams Make Terrible Decisions: The Hidden Trap of Groupthink

Why do smart, experienced leadership teams occasionally make decisions that look obvious in hindsight?

Many leaders believe groupthink happens when people are afraid to speak up or when teams lack diversity. But research from Yale psychologist Irving Janis reveals something far more uncomfortable: Groupthink often appears in the strongest, most trusting teams.

When loyalty, speed, and harmony become priorities, teams may unknowingly stop challenging assumptions—leading to flawed decisions, costly project mistakes, and missed opportunities.

In this episode, we highlight a few powerful takeaways from one of our recommended leadership reads: Victims of Groupthink by Irving L. Janis. Host Bradley Hartmann extracts practical lessons construction leaders can apply immediately to improve team decision-making.

In this episode, you’ll learn:

• Why high-trust leadership teams are actually more vulnerable to groupthink
• The hidden psychological forces that push smart teams toward bad decisions
• One simple leadership habit that helps teams expand alternatives and make smarter strategic choices

Press play to discover how to protect your leadership team from groupthink and start making stronger, more strategic decisions today.

At Bradley Hartmann & Company, we help construction teams improve sales, leadership,  and communication by reducing miscommunication, strengthening teamwork, and bridging language gaps between English and Spanish speakers. To learn more about our product offerings, visit bradleyhartmannandco.com.

The Construction Leadership Podcast dives into essential leadership topics in construction, including strategy, emotional intelligence, communication skills, confidence, innovation, and effective decision-making. You’ll also gain insights into delegation, cultural intelligence, goal setting, team building, employee engagement, and how to overcome common culture problems—whether you’re leading a crew or managing an entire organization.

Have topic ideas or guest recommendations? Contact us at info@bradleyhartmannandco.com.

New podcasts are dropped every Tuesday and Thursday.

This episode is brought to you by The Construction Spanish Toolbox —the most practical way for construction teams to learn jobsite-ready Spanish in just minutes a day over 6 months.