“Having worked alongside Marianne Bachynski as both a ‘colleague and coach’ for many years, I see how her debut book, Fit for Uncertainty, brings to life the very principles she lives every day: adaptive leadership, strategic thinking, and empowering people to lead with purpose. It’s been an honor to witness her evolution into the bold leader she is today, one who embraces uncertainty as a catalyst for transformation, not as a threat.

In Fit for Uncertainty, Marianne speaks from decades in the trenches of Wall Street and global tech leadership. This book is both her call to action for every leader navigating the chaos of modern business and her blueprint for leading with clarity, courage, and compassion in the face of relentless change."
— Guy Chiarello
COO, Fiserv; Former President, First Data Corp, CIO, JP Morgan Chase, CIO, Morgan Stanley

"Marianne Bachynski fostered a culture of collaboration between the IT function and the rest of the firm, as she worked to integrate the IT services of four asset management companies into a global business. She was not only a technology expert, she was a true business partner and leader.

While implementing a platform-based approach, Marianne consolidated the global IT infrastructure, reduced complexity and increased organizational agility. She thrived in a high-stress environment, guiding the team to meet objectives despite tight deadlines and resource constraints. Her management skill set allowed her to successfully rally the IT organization, ensuring buy-in and a shared vision.

Marianne lived the apocryphal role of building the plane while flying it. The insightful stories told in the book demonstrate how Marianne built trust and championed innovation in every role she held. The ability to lead and inspire proved as powerful as her technical expertise."
— Mitchell M. Merin
Former Global Head of Investment Management; Member, Morgan Stanley Management Committee

“Every leader navigating digital transformation should have this book within arm’s reach. Yesterday’s playbook no longer suffices in today’s world; the reality of modern leadership will only continue to grow increasingly complex as the tech and business landscape likewise continues to innovate and disrupt traditional practices. In Fit for Uncertainty, Marianne Bachynski provides a clear road map to equip leaders with the adaptability and strategic mindset necessary to thrive in this era of unprecedented digital disruption and organizational change. Based on lessons from Marianne’s hard-fought wisdom, Fit for Uncertainty is the guide today’s executives need to face the realities of tomorrow.”
— Eileen Vidrine
Board Member, Advisory; Strategic Advisor, Mark Cuban Foundation; Executive Coach, Carnegie Mellon University; Former Chief Data & Artificial Intelligence Officer, United States Department of the Air Force

“Volatility is the new normal, complexity is the cost of relevance, and Fit for Uncertainty is the compass every forward-thinking leader needs. Marianne Bachynski decodes the turbulence of modern leadership in a powerful testament to what’s possible when courage, strategy, and empathy converge, forged from her real-world transformation experience. Marianne’s insights empower leaders to move beyond reactive decision-making and into purposeful, future-ready leadership.”
— Steve Randich
CIO, FINRA; Former Global Co-CIO, Citi; Former EVP and CIO, NASDAQ OMX