What Research Reveals About Effective Team Development

Published: July 1, 2025

In this research study, Joe Folkman and Jack Zenger reveal what sets great teams apart by analyzing 171 underperforming teams that received negative customer feedback. Some improved dramatically, others didn’t. What made the difference? By measuring 16 dimensions and 50 behaviors, Zenger Folkman uncovered the key traits that separate thriving teams from struggling ones—offering powerful insights for driving lasting team effectiveness and success.

The takeaway? Developing individual leaders is important, but if you’re not also developing the team as a unit, you’re missing a huge opportunity.

This article introduces The Extraordinary Team™ development experience designed to help teams understand their strengths, focus on what matters most, and work together more effectively. It’s a practical roadmap for any organization looking to turn good teams into truly great ones.

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Leadership Studies