Susan Arnold Lange is a Psychologist and Licensed System-Centered Practitioner, providing systems-centered training, consultation, and clinical services. Relationship, career and spiritual development are the areas of consistent focus during her more than 30-years of facilitating change.

Consulting with health care delivery systems, faith-based communities, and yoga studios, she tailors and delivers interventions to support employees’ and volunteers’ skill and knowledge development. She has studied SCT theory and methods since 1991. 

Dr. Lange leads a virtual SCT training group that meets monthly for 4-hours.She is a Certified Yoga Teacher, Ordained Presbyterian Elder, Licensed Psychologist since 1982, Licensed Systems-Centered Practitioner, Trainer and Consultant, Member American Psychological Association, Houston Psychological Association, and Member Systems-Centered Training and Research Institute.

Allan Rubin is an organizational development consultant with over 30 years of experience focused on continuous improvement, change management, and team performance. Allan is skilled in designing and facilitating meetings, workshops, and conferences and is particularly adept with applying theories, frameworks, and approaches in practical, fit-for-purpose ways – including SCT!

He is a Birkman Master Certified Professional, a SAVI® Certified Trainer, and holds Kantor, Blanchard, and Hogan certifications. He’s a 20-year member of HODN, an 11-year member of The Systems-Centered Training & Research Institute (SCTRI), and is progressing toward becoming a Licensed Systems-Centered Practitioner.

Allan’s work has taken him around the world, serving clients in Hong Kong, Indonesia, Malaysia, Argentina, Venezuela, Bolivia, Ecuador, The Netherlands, and the UK. He has a BS in Industrial Engineering from Texas A&M University and an MBA from the University of Houston.