Leadership

Tenured Experts in the Industry

Steve Gareleck

CEO & Chairman of the Board

Steve Gareleck is the Founder and Chairman of the Board of Cost Management Group (CMG), a TEM and Cloud/Contact Center Services company that aims to bring together supplier benchmarking data, proven problem-solving methodologies, and deep experience to achieve bottom-line results.

Steve started his career on Wall Street after receiving his MBA from the University of Rochester’s Simon School. In his experience, he worked on deals such as the $20 billion RJR Nabisco privatization, and the National Enquirer/Star Magazine merger. He then moved to Atlanta, GA and started CMG (formerly Partnertel).

Chad Fisher

VP, Sales; Managing Partner

Chad Fisher joined CMG in April of 2000 and holds responsibility for managing CMG’s Partner sales team efforts including revenue growth, client retention, account management and client experience. His results driven and client focused approach has helped CMG’s growth year over year. Over the past 25+ years at CMG, Chad has held several positions including Account Manager, Senior Account Executive, Vice President Channel Sales, and played a pivotal role in assisting in the transition of CMG’s legacy businesses into the current organization it is today.

Chad graduated from the University of Georgia’s Terry College of Business with a Bachelor of Business Administration.

Rob Celona

VP IT Operations; Managing Partner

Rob Celona joined CMG in 1999 and is responsible for the PBX division of the company. He graduated from University of Richmond in 1991 and received an MBA in General Management from Richmond University in London in 1998. Prior to joining CMG, Mr. Celona worked with TIE Communications in London – a PBX manufacturer – for over six years in sales, project management and operations management. Mr. Celona focuses on CMG’s IT Services offerings including cloud, professional services, managed networks, and integrated services.

Ana Elizondo

VP, Operations

Ana Elizondo holds a degree in Business Administration with an emphasis in Operations and is known for her strong focus on process improvement, cost optimization, and client experience. Since 2012, she has brought strategic vision and operational excellence to the full lifecycle of telecommunications expense management at CMG, leading high‑performing, cross‑functional teams to deliver accurate, scalable, and results‑driven services across the Itemize platform and CMG’s managed services portfolio. Her teams oversee everything from implementation, project management, and service delivery to billing accuracy, dispute resolution, rate validation, and payments, enabling clients to focus on their core business while CMG drives efficiency and financial impact behind the scenes.