Roger Addison has a Ph.D. in Educational Psychology from Baylor and is Certified in Performance Improvement Technologies (CPT). He is the co-author of Performance Architecture and an internationally respected performance improvement consultant. He is the founder and Chief Performance Officer of Addison Consulting. Previously he was the Senior Director of Human Performance Improvement for the International Society for Performance Improvement (ISPI) where he was responsible for educational programs and implementing performance improvement systems.

Carol Haig is a Certified Performance Technologist (CPT) and has more than 30 years of multi-industry experience partnering with organizations to improve their employees' performance. Carol is known for her superior skills in project management, analysis and problem/opportunity identification, and instructional design and facilitation. She has consulted with executives and line managers, established and managed training departments, trained trainers, written for professional publications and mentored performance consultants. She is co-author of Performance Architecture.

Mark Johnson is a licensed Architect and President/Owner of The Understanding Business, providing architectural and consulting services. Related disciplines include Information Design, Performance Improvement, Product Design and Publishing. Trained as an Architect, Mark’s professional experience includes architecture, engineering, owner’s representation, construction, supervision and inspections, forensic architecture, and litigation support. His strengths include business development and client relationships, developing and articulating project business plans, strategic planning, and directing creative teams developing innovative solutions for unique challenges in projects and business.