In September 2019 – NACA Advisor’s Committee member Jake Ortego PE CCA/CCP presented this concept at the annual Conference. (bio below)
The Ortego Equation -slide deck.

Jake Ortego, CCA/CCP
Mr. Ortego is Principle at HPM Audit and Contract Services based in Dallas, TX. Jake has over 28 years of experience with nearly every aspect of capital improvement processes from inception through design, construction, and closeout for projects that range into the billions of dollars. He leads the practice in providing consulting to Owner organizations engaged in the planning and execution of capital programs with a focus on risk identification, avoidance, and mitigation. Over his career, he has provided project controls, scheduling, project management and engineering management for nearly every sector of Owner, including institutional, public sector, industrial, and commercial. Beyond his auditing and consulting work, Mr. Ortego has been requested to provide expert opinions for construction litigation as well as neutral third party opinions as part of settlement between parties. Prior to HPM, some of Jake’s career highlights included founding JA Cost Engineers and Advisors, being a primary team member of Deloitte’s North Central Construction Advisory Group, and leading EPCM efforts as well as running an engineering office in Manilla for Eichleay Engineers. Jake has been heavily involved with NACA including being a Certified Construction Auditor and Cost Professional, serving on the National Advisory Board, and being the MC to many of the conferences. He is also a Licensed Professional Engineer and a Certified Cost Engineer. He is a graduate of Boston University where he obtained a Bachelor of Science Degree with a major in Mechanical Engineering. He has been published by the Association for the Advancement of Cost Engineering (AACE) as many other industry publications.