Our team is comprised of highly experienced consultants with one mission:  To partner with clients to provide leadership advisory services that are practical, flexible and help clients to execute on their business strategy.


Irene GlassFounder and CEO

Irene Ortiz-Glass is Founder and CEO of Leadership Advisory Group, LLC. Irene is an experienced executive with over 20 years working as a global leader in talent management and as a General Manager designing organizational strategies and building teams. She has a passion for helping leaders to thrive in both life and work. She has created a unique approach to executive coaching that is holistic in nature and focuses on self/personal development, leadership development, organizational management and business execution. “Our goal at Leadership Advisory Group is to align the “person” and the leader to help leaders thrive in life and work.” Irene has extensive experience working at the organizational level with executive teams,facilitating strategic planning, organizational development and change management. Irene has worked extensively with high potential female leaders and sponsors a women in leadership program annually for emerging female talent.

Prior to launching Leadership Advisory Group, Irene worked for SAP leading the Cloud business and before this role ran global talent for the organization and North America Sales. Prior to joining SAP, Irene led the Western Region for Korn/Ferry’s Leadership and Talent practice and had oversight for the global technology practice. In this role Irene specialized in executive assessment, coaching and integrated succession and talent management.

Irene has a passion for working with type A executives who suffer from burnout and over achievement. She speaks frequently regarding her own battle with trauma, illness, depression and anxiety with candor and transparency. She cares deeply about wellness, nutrition, spirit filled living and finding purpose.
Irene has a BA in Communications from Azusa Pacific University and a Master’s Degree in Organizational Leadership from Chapman University.

Irene is a speaker on topics such as, “Finding Your Voice” “The Power of Purpose” “Beautifully Broken, A Struggle with Perfection” “Addiction to Adrenaline”

Mark MattekConsultant & Executive Coach

Mark Mattek is a people development professional with 15 years of experience in corporate and operational roles building leadership & team capabilities.

Mark most recently led the Leadership & Professional Development team at American Airlines – the world’s largest airline. Prior to his time at American, he worked at Sony Pictures Entertainment in Los Angeles, where his roles included HR Business Partner and Executive Director, Leadership & Organization Development for the Television & Digital Productions businesses. Prior to Sony, Mark lived in Phoenix and worked in various training & development roles at Apollo Education Group, where he obtained his Master of Science in Counseling – continuing from his undergraduate studies in psychology.

Mark specializes in coaching senior lead-ers seeking growth opportunities in order to break into the next realm of their careers, with a focus on communication skills & executive presence.

Mark is a certified coach who:

Uses behavioral insights (360 assessments, leader profiles, in-the-moment observation) to increase awareness, resulting in self-discovery & a change management plan with built-in accountability measures.

Brings extensive coaching experience with Directors & VPs/SVPs from the entertainment, technology, travel, financial, nonprofit and education industries in 11 countries across major markets.

Incorporates his unique lens of being a trained therapist, business leader and certified coach.

Leverages his business experience in the areas of performance consulting, leadership development, change management, culture work, executive offsite facilitation, organizational development & conflict resolution.

Mark’s professional certifications include: Korn-Ferry VOICES 360 Coaching; OutMatch ASSESS 360 Coaching & Personality; Certificate in Essentials of Human Resource Management; Human Capital Strategist; FKA Performance Consulting Master Certification; Essi Systems Emotional Intelligence; Emergenetics International Advanced Associate; & Mind Gym Facilitator.

Mark lives in Oakland with his partner.

Mary ChoiExecutive Coach

For over two decades, Mary has worked with leaders in global companies and diverse in-dustries helping them develop courage, drive change and build culture. She has a deep passion for helping leaders and organiza-tions realize their greatest potential in work and life and has dedicated her career to de-veloping tested and proven techniques to de-liver results. Through her work with senior leaders, Mary has learned that leadership takes courage; the courage to ask questions and listen. The courage to tell the truth and do the right thing, even when unpopu-lar. And most importantly, the courage to be true to yourself and to take action.

Mary has cultivated an extensive portfolio of experience and best practices in Talent Management, Leadership Development and Change Management through senior lead-ership roles in organizations that include Marriott International, Honeywell Interna-tional, Mattel Inc., New Century Financial, Pacific Sunwear of California, Bank of America and MGM Resorts Internation-al. Additionally, she led the growth of a global e-commerce company during the in-ternet startup boom. She is recognized as a “truth teller” that leaders trust and rely on for practical solutions that deliver business re-sults. She has a natural talent for cutting through the clutter and simplifying complex issues to the few, critical actions that deliver value. She brings a holistic view to organi-zational issues and challenges by leverag-ing her diverse experience, knowledge and global, commercial mindset.

Mary holds a PhD and MA in Organization-al Psychology from Alliant University and a BA in Psychology from the University of California, Irvine. She is also an active con-tributor to the field of Human Resources as an advisor, author and speaker. Mary is al-so the co-founder of the Women’s Hospitali-ty Initiative, a Las Vegas-based nonprofit organization, a component fund of Nevada Community Foundation, committed to de-veloping and implementing programs for women to grow and achieve leadership po-sitions. Mary is the proud mother of two boys and enjoys taking advantage of every-thing that life has to offer!

Richard MignaultExecutive Coach

Richard is a seasoned HR and business execu-tive who has lived and worked globally for over 30 years. His strong international business and multi-disciplinary experience in HR Manage-ment, Organizational Development, Executive Coaching, Operations Management, Project Management, Business Planning, Change Management and Information Technology pro-vide his clients with a wealth of knowledge and skills across many lines of business. He has worked with such organizations as Hilton Inter-national, Scandinavian Airlines, Hilton Hotels Corporation, Carnival Hotels and Casinos, IGT Services Inc, and The Culinary Institute of Amer-ica; bringing a rich host of practical experience to the table.

Richard Mignault has been responsible for actively leading corporate reorganization and restructuring efforts; expanding office locations both domestically and internationally; directing and coaching large management teams; and implementing technology and systems-based solutions to improve efficiency and effectiveness. He has successfully facilitated numerous strategic planning exercises; working with teams to find innovative and cost-effective ap-proaches to ensure operational success. He has significant experience in policy development project and process management and corporate communi-cations. Born and educated in Canada, Richard has dual citizenship with the United States and is a graduate of Lower Canada College in Montreal, Quebec and the University of Western Ontario in London, Ontario. He currently resides in New York and Palm Springs, California.

Jennifer BuckTalent Management Consultant and Executive Coach

Jennifer is a talent management consultant and executive coach specializing in leadership development, employee engagement, change management, and customized talent strategy and process design. She has over 15 years of experience as a business leader building talent and OD functions from the ground up in fast growth companies and as a consultant for global companies ranging from start-ups to Fortune 500. Her hallmark is creating innovative solutions that reflect and reinforce each client organization’s unique culture.

Jennifer holds a BA in Psychology from the University of Washington as well as an MA in Organization Development and Graduate Coaching Certification in Evidence-Based Coaching from Fielding Graduate University.

Martin LowerySenior Consultant & Executive Coach

Martin is an adept organization development, executive coach and change management consultant with 30 years of international experience. Prior to joining Leadership Advisory Group, LLC, he was working with Sony Pictures Entertainment as Senior Vice President of Leadership & Organization Development, based on the studio lot in Culver City, California.

Before that, he served as Chief Learning Officer for The Apollo Education Group, one of the world’s largest education companies.

Martin spent most of his career with Hilton Worldwide in a variety of operational and corporate roles, ultimately serving as the Chief Learning Officer for the company, based out of Beverly Hills, CA. He has travelled millions of miles facilitating leadership, organization development and change management projects in over 30 countries.

With a deep interest in cognitive and neuroscience, Martin utilizes the latest research to ensure a comprehensive approach that optimizes leadership performance, organization design and development and effective change management.

Martin has earned a reputation as a top management consultant and executive coach, and his effectiveness leverages his own first-hand experience of working in operational and corporate office roles.

Martin’s certifications include:
Decision Dynamics: Decision Styles * FKA Performance Consulting * Emergenetics * Advanced Emergenetics * Emotional Intelligence – EQ Map *

Neuro-Leadership Institute * Association of Talent Development * Society for Human Resource Management * National Speakers Association * eSpeakers * Meeting Professionals International *

Martin was born and educated in the UK, at Clifton College and then the University of Surrey, where he earned his Bachelor of Science Honors Degree in Hotel & Catering Administration. He is also an Associate of the University of Surrey and has been a Governor of Clifton College since 2002. Martin is now a Citizen of the United States and also carries EU/UK and Canadian passports. Martin resides in Palm Springs, California.