Expertise That Delivers Results
Senior Partners from numerous Fortune 500 and Global 1000 organizations who have driven $500M+ in savings and designed, built, and optimized 12 Global Capability Centers—now helping you optimize.
Our Mission
The Coefficient Group exists to help organizations capture the 10–45% of waste hiding in IT and Business Process Operations (BPO) budgets. We combine 200+ years of Fortune 500/Global 1000 experience with a practical, metrics-driven approach.
We do not just advise—we have led the same kinds of programs we now run: vendor rationalization, Global Capability Center (GCC) design/build/optimize, labor optimization, cloud migrations, and infrastructure transformation. That is why our recommendations are actionable and our results measurable.
Leadership
Co-Founders · Managing Partners · Transformation Experts
Co-founders with deep experience in global institutions and enterprise transformation

Michael Makar
Co-Founder & Managing Partner
Technology Leadership & Enterprise Transformation
Michael Makar is a technology executive and entrepreneur with more than 25 years of experience building and scaling global organizations, leading enterprise transformations, and delivering measurable financial results. He has spent his career at the intersection of technology, strategy, and business transformation, helping organizations figure out not just what to change but how to actually make it happen at scale. He brings an entrepreneurial mindset to every engagement, moving fast, questioning assumptions, and maintaining a relentless focus on business results.
Most recently, Michael served as Managing Director of a leading Fortune 500 financial services company's Romanian global delivery center, where he built and scaled it from inception into a 600+ person strategic technology hub in under four years. He designed and executed a scalable operating model that generated approximately $62M in recurring annual cost efficiencies while expanding digital capability and innovation capacity at scale. Under his leadership, the Romanian company earned recognition as a Top Employer in 2022 and 2023.
Prior to his most recent executive leadership role, Michael held senior leadership positions across the financial services, insurance, and technology sectors, where he built and scaled high-performing global organizations, drove large-scale technology transformation programs, and consistently delivered measurable business outcomes. His track record spans P&L ownership, enterprise-wide modernization, and the kind of operational leadership that turns strategic vision into executed results. He holds a BS in Computer Information Systems from Bentley University.
Key Expertise
- Digital & AI Transformation
- Organizational Scaling & Global Expansion
- Operating Model Design & Cost Optimization
- Enterprise Modernization & Platform Strategy
- P&L Leadership & Strategic Planning
- Global Capability Center (GCC) Development & Operations
- High-Performance Team Building & Culture
- Executive & Board-Level Communication
- Enterprise Risk Management & Operational Resilience
- Strategic Vendor Management & Negotiation

Arthur J. Riel
Co-Founder & Managing Partner
IT & BPO Optimization Expert
Arthur J. Riel brings over 40 years of IT and Business Process Operations leadership experience, with a proven track record of delivering hundreds of millions in documented cost savings. His career encompasses roles as educator, author, entrepreneur, software engineer, architect, and executive, managing teams from 5 to 3,500 FTEs with budgets exceeding $700M.
Arthur's expertise in Global Capability Center creation is unparalleled—he has created or significantly grown multiple GCCs (ranging from 80 to 2,800 FTEs) across India, Eastern Europe, and North America. At a Fortune 500 Financial Services Company, Arthur led the creation of GCCs in India (2,400 FTEs) and Romania (650 FTEs), achieving industry-leading attrition rates of 6-8% versus the typical 20-25%. These initiatives delivered $121M in documented three-year savings, increasing to $200+ million in year 5. Through numerous efficiency optimization levers, Arthur further reduced the IT budget from $700M to $520M in two years with continued reductions each year thereafter.
Prior to that, Arthur served in senior technology roles at a Global Financial Services Institution, including Chief Enterprise Architect, CIO of Finance IT/Infrastructure/Middleware, and CIO of Corporate IT, where he freed $40M from a $355M budget through comprehensive optimization. His career also includes leadership positions at leading investment banks, a major stock exchange, a global ratings agency, and other major financial institutions. Throughout his career, Arthur has managed hundreds of IT projects and programs spanning numerous domains and technology areas.
Arthur has founded two startup companies: Vanguard Training, which he operated for ten years, and Global Lighthouse Technologies, acquired by Atempo Inc in 2008. He has numerous publications including two books: "Object-Oriented Design Heuristics" (Addison-Wesley, 1996) and "Optimizing Corporate Efficiencies" (forthcoming 2026). Arthur has lectured at numerous conferences on a variety of technology topics. He holds an MS and BS in Computer Science from Northeastern University.
Key Expertise
- Budget Optimization & Efficiency Engineering
- Global Capability Center Creation & Management
- Vendor Management & Strategic Negotiation
- Labor Optimization & Salary Arbitrage
- Infrastructure & Cloud Transformation
- Solution Landscape Rationalization
- IT & BPO Governance Frameworks
- Change Management at Scale
Senior Partners
Seasoned executives who bring deep domain expertise to every client engagement.

Brian W. Clark
Senior Partner
Advisor, IT Strategy & Delivery
Brian W. Clark is a senior technology executive with decades of C-suite leadership across financial services, capital markets, and enterprise technology. He brings hands-on experience spanning IT strategy and execution, large-scale business transformation, enterprise architecture, cybersecurity, software engineering, and AI-enabled modernization — with leadership responsibilities of up to 350 people and $162M in budget.
Most recently as CTO of Capital Markets International at Broadridge Financial Solutions, Brian led the development of an AI Algo CoPilot solution enabling buy-side firms to dramatically reduce trading costs, reduced cloud spend by more than 70% through event-based architecture adoption, and played an instrumental role in the $60M sale of the Payments business. As CIO of Worksite Solutions at MassMutual, he led the digital transformation of the retirement platform to a software-as-a-service model and took the lead technical role in the successful $2.3B sale of the retirement business to Empower.
Brian's broader career includes senior roles at JP Morgan Chase, NYSE Euronext where he saved over $100M in costs, Moody's Corporation, Nikko Securities International, and Citigroup. He holds a BS in Business and Information Systems from the University of Phoenix and is the author of Eisenhower's Leadership: Executive Lessons from West Point to the White House.

Gary Saggu
Senior Partner
Advisor, AI Solutions Architecture & Enterprise Technology
Gary Saggu is a technology leader and AI solutions architect with more than 30 years of experience across software development, enterprise architecture, data analysis, and intelligent system design. He specializes in turning complex business needs into scalable, practical solutions that improve decision-making, operational efficiency, and delivery speed.
Most recently he has led large-scale technology initiatives in highly regulated financial services environments across Debt and Equity Capital Markets, with work spanning solution architecture, application and platform design, data-driven problem solving, and enterprise transformation across trading, execution, risk, operations, and post-trade functions. His broader career includes senior architecture and technology leadership roles at Morgan Stanley, Citi, NYSE Euronext, and MassMutual.
Gary also brings startup experience, having founded and operated technology ventures that strengthened his entrepreneurial mindset and ability to move from concept to execution quickly, adding a practical and innovation-driven dimension to his profile and reinforcing his ability to operate effectively in both enterprise and growth-stage environments. He holds a BS in Electrical Engineering and Computer Science from SUNY Stony Brook.
A Global Team Behind Every Engagement
Arthur and Mike lead every client engagement directly as Co-Founders and Managing Partners — but they don't work alone. The Coefficient Group draws on a curated team of senior practitioners and delivery specialists across three continents, ensuring clients receive both executive-level strategic guidance and hands-on execution at every stage of the work program.
Michael, Arthur, and The Coefficient Group's senior partners bring over a combined 200+ years of senior IT and BPO leadership experience to every client engagement.
United States 🇺🇸
Leadership & Strategy
Executive leadership, client relationships, AI strategy, and transformation program oversight headquartered in the US.
India 🇮🇳
Delivery & Engineering
Experienced technology delivery, software engineering, data operations, and GCC program execution specialists.
Eastern Europe 🇷🇴 / 🇵🇱
Technology & Development
Senior software engineers, AI developers, and technical architects based in Romania and Poland supporting complex engagements.
Combined Partnership Strength
Together, Arthur and Michael bring complementary expertise spanning budget optimization, operational efficiency, technology strategy, and execution excellence. Their combined 65+ years of experience covers the full spectrum of organizational transformation—from financial optimization and GCC creation to cloud modernization and AI Deployments. Both partners have delivered hundreds of millions in documented savings and operational improvements across Fortune 100 companies, global financial institutions, and government organizations.
Why Choose Us
What sets The Coefficient Group apart
Proven track record
Hundreds of millions in savings, 12 Global Capability Centers designed/built/optimized. Results backed by data and client outcomes.
Senior expertise
Fortune 500/Global 1000 leadership experience. We have led the initiatives we now advise on. Practical experience, instead of idealistic theories, of how projects and programs are optimized.
No one-size-fits-all
Advisory only, execution only, or full partnership. We align to your goals and constraints.
Integrity first
Transparent methods, clear metrics, and recommendations that serve your long-term success.
Our Approach
A four-phase methodology that turns analysis into lasting results—aligned with "Optimizing Organizational Efficiency" by Arthur J. Riel (to be published later in 2026).
Discover
Deep-dive into your IT and Business Process Operations (BPO) spend, vendors, and operations to pinpoint waste and opportunity.
- Budget and vendor analysis
- Process and capability assessment
- Stakeholder alignment
Design
Build a prioritized roadmap and business case with clear milestones and ROI.
- Optimization roadmap
- Business case and funding
- Governance and ownership
Deliver
Execute with discipline: vendor negotiations, Global Capability Center (GCC) setup, cloud migrations, and solution rationalization.
- Vendor consolidation
- Global Capability Center (GCC) design/build/optimize and scaling
- Infrastructure and solution changes
Sustain
Embed governance and continuous improvement so gains persist and compound.
- Governance and KPIs
- Ongoing monitoring
- Continuous improvement
Our Values
The principles that guide how we work
Results-driven
We measure success by the value we deliver, not the hours we dedicate.
Innovation
We use proven methodologies and modern practices to solve complex problems.
Partnership
We work alongside you to build capabilities that last beyond the engagement.
Integrity
Transparent communication and ethical practices in everything we do.
Ready to Work Together?
Schedule a complimentary consultation to discuss your challenges and how we can help.