Why New Leaders Succeed Or Fail

Knowledge at Wharton
Knowledge at WhartonMay 12, 2026

Why It Matters

Misreading employee readiness during a leadership transition can derail performance, while aligned coaching by a successor can unlock measurable gains across schools and corporations alike.

Key Takeaways

  • Successors must align leadership style with employees' change appetite.
  • Coaching behavior drives teacher motivation and school performance shifts.
  • Visionary rhetoric alone has no impact on employee engagement.
  • Incumbents' actions rarely move the needle compared to new leaders.
  • Insider successors, like Apple’s Ternus, likely succeed by reading the room.

Summary

The Ripple Effect episode examines new research on how successor leaders differ from incumbents, using public‑school principal transitions as a natural laboratory and drawing parallels to corporate CEO changes such as Apple’s upcoming shift from Tim Cook to John Ternus.\n\nThe study finds that a successor’s success hinges on matching their leadership behavior—particularly coaching—to teachers’ perceived need for change. When employees feel improvement is required, coaching boosts engagement and test‑score gains; when they feel the status quo is adequate, the same coaching backfires. By contrast, visionary statements alone have no measurable effect.\n\nResearchers surveyed teachers before and after principal turnovers across more than a hundred schools in seven large districts, revealing that coaching drives collective motivation and performance, while incumbents’ coaching rarely shifts outcomes. The discussion applies these findings to Apple, noting that an insider successor like Ternus, who already understands the organization’s climate, is better positioned to read the room and implement appropriate change.\n\nThe implications are clear for any organization facing leadership turnover: diagnose the workforce’s appetite for change before acting, tailor coaching to that context, and recognize that successors wield disproportionate influence—both positive and negative—on employee motivation and organizational results.

Original Description

ABOUT THE EPISODE
What happens when a new leader takes over an organization? Katherine J. Klein, Edward H. Bowman Professor of Management at The Wharton School, explains why leadership transitions can dramatically reshape employee motivation and performance, and why successful successors must “read the room” before pushing change.
The conversation explores coaching, organizational behavior, school leadership, CEO succession, and what companies can learn from leadership transitions at institutions like Apple.
ABOUT THE PODCAST
Every day, business scholars answer pressing questions in their research - but what do their insights mean for you? In this podcast, Wharton faculty dive into what inspired their studies and how their findings resonate with the world today. Learn how research insights translate into knowledge you can use, with host Dan Loney.
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Watch/listen on the Knowledge at Wharton website: https://whr.tn/rippleeffect
#leadership #management #organizationalbehavior #business #apple
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