Entrepreneurs in Residence

John Schloff is a growth professional at heart, with 25+ years of marketing leadership experience across a diverse number of companies and industries, with executive roles that include strategy, marketing, product management, general management and new business development. He is adept at re-inventing customer processes to deliver greater value, specializes in taking emerging technologies into traditional markets and has launched over 50 new products/businesses.

He believes an aligned and motivated team can outperform a single superstar every day of the week.  He has substantial global leadership experience, has lived and worked abroad and believes diversity is a cornerstone of success, and that a leader’s job is to create an environment for people to win. Schloff has forever dreamed of parachuting out of a plane but has yet found the guts to do it.

✉️ john.schloff@simon.rochester.edu

David Mammano is a seasoned entrepreneur, author, and keynote speaker who has dedicated his career to helping people unlock their potential. With over 25 years of experience in business and education, he has launched multiple companies, written books, and inspired countless entrepreneurs through his talks, workshops, and podcast. Passionate about business, leadership, and personal growth, David combines real-world insights with humor to keep audiences engaged and motivated.

When he’s not busy changing lives, you can find him drinking excessive amounts of limoncello, trying to convince his kids to listen to him, or searching for his reading glasses—which are usually on his head.

✉️ david@davidmammano.com

Dennis Kessler is co-owner of Kessler Restaurants LLC, focusing on real estate and mobile cell-tower development. Previously, his company was the largest Friendly’s franchisee and owned 21 Burger King locations. He also serves on the Excell Partners Board and teaches at Simon Business School.

Kessler advises startups like WEX Energy and NeuroGenesis Biotech and has held leadership roles with the University of Rochester Medical Center and City of Rochester Civil Service Commission. He was appointed to the New York State Insurance Fund by Governor Cuomo. Kessler holds degrees from City University of NY, Yale Law, and Northwestern and was a former NYC taxicab driver.

✉️ dennis.kessler@simon.rochester.edu

Roberto D. Colangelo is an accomplished academic and business leader with expertise in strategy, entrepreneurship, and global marketing. As an Executive Professor at the Simon Business School, he combines professional experience with a passion for mentoring future business leaders. Roberto also leads Colangelo Innovation Group, helping companies innovate and expand into emerging markets, focusing on government modernization, biotechnology, and energy. His career includes leadership roles at Price Waterhouse, Bausch & Lomb, Xerox, Kodak, and start-ups, raising over $50 million in venture capital.

Beyond his professional work, Roberto is active in community organizations like WXXI PBS and St. John Fisher College and has coached soccer for over 15 years. He holds degrees in Economics and Business Administration from the University of Buenos Aires and SUNY, along with a Master’s in Economic Development. His honors include the Clifford W. Smith, Jr. Simon EMBA Superior Teaching Award and recognition as Hispanic Business Person of the Year.

✉️ rcolang2@simon.rochester.edu
     585-520-1016