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about us

devora zack, CEO

Devora Zack is a best-selling author, global keynote speaker, and leadership consultant. Her internationally released books, Networking for People Who Hate Networking, 2nd Edition (Berrett-Koehler 2019), Singletasking (Berrett-Koehler 2015), and Managing for People Who Hate Managing (Berrett-Koehler 2012) are translated into 45 languages. Awards include Forbes Top Networking book 2019, Forbes Top Five Self-Help Books, Top Five Business Books of 2016, and Top Ten Non-Fiction by the Washington Post.


She is CEO of Only Connect Consulting, Inc. (OCC) providing leadership and team programs to 100+ clients.  Ms. Zack has keynoted for the Smithsonian, Johns Hopkins Medical Institute, National Institutes of Health, John Deere, London Business School, U.S. Department of Energy, Treasury Executive Institute, U.S. Patent & Trademark, and Mensa, among others.


She has been invited twice to tour Australia by the Australian Institute of Management. Additional sample clients include Deloitte, Delta, Bristol-Myers Squibb, FDA, Department of the Interior, America Online, ICF, and U.S. Department of Education.


Ms. Zack holds an MBA from Cornell (full tuition merit scholar), a BA from University of Pennsylvania (magna cum laude), certifications in MBTI and Neuro-Linguistic Programming, and memberships in Phi Beta Kappa and Mensa. OCC won USDA’s Woman-Owned Business of the Year.


She has been featured in dozens of media such as the Wall Street Journal, USA Today, ABC- TV, Bloomberg Radio, US News & World Report, CNN Money, CNBC, Fox News, British Airways, Forbes, Cosmo, Self, Redbook, Women’s Health, Working Mother, and Fast Company.

OCC Associates


Evan Crump uses his background as a university professor and award-winning writer to help individuals and organizations improve their written and oral communication.  He holds an Ed.D. from George Washington University and has taught numerous courses in business writing, public speaking, and English.

Denise Jenkins leverages clients’ strengths as an executive coach and consultant. Her expert trainings improve communication, mitigate conflict, and build teams. She has an MSW from University of South Carolina and is certified in the Myers-Briggs Type Indicator.

Portia Lee integrates action learning and facilitation, enabling clients to increase effectiveness in team environments. She holds an MS, and her work spans North America, Europe, and Asia. She focuses on enabling clients to achieve their highest potential.

Richard Tanenbaum applies his PhD in Psychology to helping executives and organizations improve their management practices, public relations, and organizational development. He works as both a coach and consultant.

Leslie Williams is an executive coach and organization consultant. She has an MS in Organization Development, a Professional Coach certification, and is certified to administer the Myers-Briggs Type Indicator and Emotional Competencies Inventory.

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