Executive Leadership


Lloyd "Buzz" Waterhouse

Lloyd "Buzz" Waterhouse

McGraw-Hill Education

Lloyd “Buzz” Waterhouse was named interim President and CEO of McGraw-Hill Education in October 2017. Previously he was the CEO of McGraw-Hill Education from June of 2012 until April of 2014. He was responsible for the successful separation of McGraw-Hill Education from McGraw Hill Financial, now S&P Global, setting up the new company and its subsequent sale to Apollo Global Management. He also led the company through its first year of independence in which many significant operational and financial milestones were achieved.

Buzz also served as the CEO of Harcourt Education, a provider of instructional materials, e-learning and testing services for the global education market. Previously, he was CEO and Chairman of The Reynolds & Reynolds Company, the leading provider of automotive retailing solutions. Before Reynolds, Buzz held numerous roles at IBM. He led their strategy and business development functions during Lou Gerstner’s tenure and subsequent turn-around, launched IBM Global Services, and was president of Asia Pacific Services Corporation.

Buzz currently serves on the boards of McGraw-Hill Education, JDA, Sparta, Instructure, and Penn State’s Smeal College of Business.

Diane Adams

Diane Adams


Diane Adams is the Chief Culture and Talent Officer for McGraw-Hill Education. As the global leader of the human resources teams, her major responsibilities include talent acquisition, talent development, performance management and rewards and recognition. Prior to her current role, Diane served as Chief People Officer at Qlik Technologies, where she was responsible for the company’s human resources function, including talent acquisition and change management. Before that, she was Executive Vice President, Culture and Talent at Allscripts, a leader in healthcare information technology solutions. Prior to that, she served in a variety of human resources leadership positions at Cisco Systems.

Diane is the author of More than Casual Fridays and Free Coffee: Building a Business Culture that Works for Everyone. She serves on a number of boards, including the International Juvenile Diabetes Research Foundation Board, where she is a recipient of the “Living and Giving” award, and the North Carolina Communities in School Board. She also is a past recipient of the “Women in Leadership” award for making an impact in business and the community within the North Carolina Research Triangle Park.

Diane holds a Bachelor’s degree in Business Administration from University of North Carolina at Chapel Hill, and she recently served on the UNC Board of Visitors.


Angelo T. DeGenaro


Angelo T. DeGenaro serves as Chief Information Officer for McGraw-Hill Education, joining the company in January 2015. Angelo began working for The McGraw-Hill Companies in 2004, most recently as Senior Vice President and Chief Technology Officer at McGraw Hill Financial. In that role, he was responsible for enterprise architecture, global infrastructure delivery, and IT risk management, among other areas.

Before joining The McGraw-Hill Companies, Angelo held senior technology leadership positions at the CIGNA Corporation and Citicorp. Angelo spent seven years at CIGNA as the Senior Vice President of Infrastructure Implementation Services and also held several operational and engineering leadership roles during his earlier 18-year tenure at Citicorp.

Angelo is a member of The Research Board, a New York-based international think tank and serves on Oracle's CIO Advisory Board.

Angelo holds a bachelor’s degree in Economics from New York University and a Master of Science in telecommunications and computing management from Polytechnic University.


Stephen Laster


Stephen Laster has been the Chief Digital Officer of McGraw-Hill Education since August 2012. Before joining McGraw-Hill Education, Stephen led Intelligent Solutions, LLC, a firm that engages with universities and businesses to leverage their digital technology and collaborative tools. At the same time, he served as the Chief Information and Technology Officer of the Harvard Business School and as a member of the HBS administrative leadership team, overseeing the school’s academic, research and administrative computing teams.

Prior to joining Harvard, Stephen held several leadership positions at Babson College, including Chief Technology Officer for Babson’s for-profit eLearning company and Director of Curriculum Innovation and Technology. Earlier, he held leadership positions at a number of companies where he was responsible for information technology, technology product development, and major re-engineering and implementation efforts.

Stephen serves on the board of IMS Global, served on the board of the Sloan Consortium for Online Learning and is a former trustee of Babson College. He holds a bachelor’s degree from Bowdoin College and an MBA from the F.W. Olin Graduate School of Business at Babson College.


Catherine J. Mathis


Catherine J. Mathis serves as Chief Communications Officer for McGraw-Hill Education, joining the company in May 2015. She is responsible for creating and executing corporate communication strategies targeted to critical business, media and education policy-related audiences, and also leads the company’s influencer and stakeholder management efforts. Prior to her arrival at McGraw-Hill Education, Catherine served as the senior vice president of marketing and communications for Standard & Poor’s Ratings Services. She was also a member of the Standard & Poor’s executive committee.

Before that, Catherine was senior vice president of corporate communications for The New York Times Company, where she served as chief spokesperson. In 2006, Catherine was named Communicator of the Year by the New York chapter of International Association of Business Communicators (IABC).

Catherine serves on the Board of Overseers for the Carlson School of Management at the University of Minnesota, the Board of the Corporate Communication International Center at Baruch College, the Advisory Board of the Stickley Museum at Craftsman Farms and the Board of Trustees of Hartley House, a New York-based social services organization.

Catherine graduated with honors from the University of Minnesota with a bachelor’s degree in business administration and an M.B.A. with a concentration in marketing and management information systems.


Patrick Milano


Patrick Milano was named executive vice president, chief financial officer and chief administrative officer of McGraw-Hill Education in May 2012 and interim president, International & Professional in January 2018. He is responsible for Finance, Manufacturing, Distribution, and IT as well as the management and operations of the company's International & Professional business group. From September through October 2017, Patrick acted as the Interim President of McGraw-Hill Education’s School group. Previously, Patrick served as executive vice president of Operations Services at Standard & Poor’s. In this senior role, with oversight for Finance, Strategy, Business Development, IT, Communications, Marketing and Risk Management, he was responsible for a variety of initiatives across Standard & Poor’s that strengthened the organization’s business processes, compliance processes and growth agenda.

Patrick has held a number of financial positions throughout The McGraw-Hill Companies since joining as an accountant for the McGraw-Hill Book Company in 1981. He also served as senior vice president, Finance and Administration, for Standard & Poor’s. Before that, he was senior vice president, Finance and Administration, for Standard & Poor’s Credit Market Services; and vice president, Finance and Administration, for Standard & Poor’s Investment Services. Patrick holds an M.B.A. from Monmouth University, a bachelor’s degree in Economics from Rutgers University and is a Certified Public Accountant.

Heath Morrison

Heath Morrison


Heath Morrison is president of McGraw-Hill Education’s School group, which is responsible for offering PreK-12 educators and learners with programs, tools, and services supported by differentiated pedagogical instruction and purposeful technology. Previously, he served as the School group’s SVP of Sales. Heath joined McGraw-Hill Education in 2015 as senior vice president of Government Affairs and Education Policy, where he was responsible for representing the company’s government-related opportunities before federal and state legislators and regulators as well as representatives of local school districts. He also advocated for educational policy issues affecting the company.

Heath has spent his entire career in education. He began as a social studies and math teacher in Virginia and Maryland, and moved into school administration serving as both a middle and high school principal before becoming a superintendent. He was named Maryland Principal of the Year in 2006. In 2012, he was named AASA’s National Superintendent of the Year for his work in the Washoe County School District in Reno, Nevada; the youngest leader and earliest in his tenure ever to receive this distinction. Heath most recently served as superintendent of Charlotte-Mecklenburg Schools in Charlotte, North Carolina.

Heath graduated with a bachelor's degree in Government from the College of William and Mary. He holds a Masters of Educational Administration and a Ph.D. in Educational Policy and Planning from the University of Maryland.

William Okun

William (Bill) Okun


William (Bill) Okun is the President of McGraw-Hill Education’s Higher Education group. Previously, he was a Senior Vice President and Chief Revenue Officer for the group. Bill joined the company in 2016.

Prior to McGraw-Hill Education, Bill served as Chief Commercial Officer for CEB, where he led the North American commercial teams as well as global operations. Bill joined CEB from Relationship Science LLC, a business intelligence firm in the sales and marketing space, where he served as President. Before Relationship Science, he was an Executive Managing Director at Standard & Poor's where, in his last role, he managed the Equity Research Services business unit. Bill joined Standard & Poor's with the acquisition of Capital IQ, where he had served as Executive Vice President and led the firm's revenue generation, client development, marketing, and branding efforts. Prior to Capital IQ, Bill was a Director at Sapient Corporation, where he was a leader in the CRM practice. Early in his career, he also held roles at Gemini Consulting and The Forum Corporation.

Bill holds a BA in History from Amherst College and an MBA from The Fuqua School of Business at Duke University.


David Stafford


David B. Stafford was appointed senior vice president and general counsel of McGraw-Hill Education in May 2012. As general counsel, he is responsible for all legal matters affecting McGraw-Hill Education and manages McGraw-Hill Education's legal, government affairs and corporate security departments. Prior to May 2012, David was vice president and associate general counsel at The McGraw-Hill Companies. As a senior member of the company’s legal department, he practiced in a wide variety of legal areas, with a focus on the company’s financial information businesses.

From 2006 to 2009, David served as senior vice president, Corporate Affairs, and assistant to the chairman and chief executive officer, where he was responsible for the marketing, communications, government affairs, and community relations activities of the company and advising the chairman and chief executive officer on matters involving the Board of Directors and the management and operation of the company generally. Prior to 2006 he was associate general counsel at The McGraw-Hill Companies. Before joining The McGraw-Hill Companies in 1992, he was an associate at the New York City law firms of Battle Fowler and Rosenman & Colin, where he specialized in corporate law. David is a graduate of Columbia College, where he received his bachelor’s degree, and a graduate of Cornell Law School, where he received his J.D. degree. He also serves on the Board of Trustees of YAI Network, a not-for-profit that provides services to people who are developmentally disabled.