Principals & Directors

Mr. Andrew B. Rhodes, CCE, PSPMr. Andrew B. Rhodes, CCE, PSP is a Founder and Principal of DRG. Mr. Rhodes specializes in CPM scheduling, labor productivity consulting, construction cost consulting and expert witness testimony. Mr. Rhodes’ experience includes serving as executive consultant in the construction and utility practice of Peterson Worldwide, later acquired by Navigant Consulting, and structural design engineer with HDR, a Top 20 engineering firm. More specifically, Mr. Rhodes' experience includes structural steel and concrete design, field engineering, construction schedule development, schedule updating, schedule delay, impact analysis and construction damage analysis. Mr. Rhodes has served as an expert witness on approximately 30 occasions, in venues including courts, American Arbitration Association panels, and in front of Boards of Claims. Mr. Rhodes has provided consulting services in relation to correctional facilities, iron ore processing plants, transportation and highway infrastructure projects, steel mills, power generation facilities, stadiums and exhibition facilities, schools, wastewater treatment facilities, casinos, mining facilities, rail transit projects and commercial facilities.  Mr. Rhodes has also provided construction consulting services to a wide variety of owners, municipalities, contractors, subcontractors and attorneys. Mr. Rhodes is a Certified Cost Engineer, a Planning and Scheduling Professional and a published author in the Project Management Institute's College of Scheduling periodical. He is a recipient of the Pittsburgh Business Times 2010 Diamond Award, which honors the region’s top CEOs. Mr. Rhodes graduated Cum Laude with a Bachelor of Science degree in Civil Engineering from Lehigh University and finished first in his class while obtaining a Masters of Science degree in Structural Engineering also from Lehigh.


Mr. William M. Kerns, CCIFP® Mr. Leroy Trimbath, CCIFP® is a Director and Expert Witness of DRG.  Mr. Trimbath specializes in providing expert testimony and analysis regarding construction related costs and damages.  In addition, Mr. Trimbath also provides consulting services relating to the development and implementation of construction cost accounting systems and construction financial reporting enhancements.  Mr. Trimbath has more than 30 years of experience in the construction industry and has testimony and deposition experience in federal court, before various dispute review boards and the American Arbitration Association.  His most recent experience includes serving as Senior Vice President and Chief Financial Officer of Smoot Construction Company. In this capacity, Mr. Trimbath was responsible for all financial operations of the $250M general contractor, including overseeing the company’s banking, bonding and insurance needs; ensuring accounting and financial support to construction operations; providing financial support for and negotiating construction claims and assisting in the development of the company’s strategic growth plan. He previously served S.R. Snodgrass & Company as a financial consultant to the construction industry assisting contractors in analysis of accounting systems, project administration and claims preparation. Additionally, Mr. Trimbath was Manager of Finance and Accounting with CDM Engineers and Constructors, responsible for financial and cost accounting operations.  For 19 years, Mr. Trimbath served Dick Corporation, formerly an ENR Top 100 Contractor.  Mr. Trimbath held the position of Controller and Cost Accountant for the corporation.  Mr. Trimbath is a Certified Construction Industry Financial Professional and holds a Bachelor of Science Degree in Accounting from the University of Kentucky.


Mr. William M. Kerns, CCIFP® Mr. William M. Kerns, CCIFP®, CCC is a Director and Expert Witness with DRG. Mr. Kerns specializes in the calculation of delay and disruption related damages, construction cost accounting systems consulting, financial reporting consulting on construction projects and expert testimony. During Mr. Kerns’ 25 years of experience in the construction industry, he acquired extensive experience with regards to quantifying and analyzing delay and disruption related damages, designing and implementing construction project cost control systems and consulting on cost accounting systems and financial reporting. Mr. Kerns has a wide variety of construction project experience including industrial, commercial, heavy/highway, high-voltage, healthcare, correctional facility and telecommunications related projects. Prior to joining DRG, Mr. Kerns was the Chief Financial Officer of H. Bruce and Sons, Inc., a $60 million commercial and industrial electrical design and construction company. In this capacity, he was responsible for the management of all cost and financial reporting as well as the implementation of an advanced project cost controls system for all construction projects. Previously, Mr. Kerns worked for Dick Corporation, formerly an ENR Top 100 Contractor, and P.J. Dick Incorporated, an ENR Top 150 Contractor, in the cost control and information systems manager and field accountant capacities. Mr. Kerns is a Certified Construction Industry Financial Professional and holds a Bachelor of Science degree in Industrial Management from Carnegie Mellon University and a Master of Science Degree in Public Policy and Management, also from Carnegie Mellon University.


Christopher A. Jones, MBA is the Director of Operations of DRG. As Director of Operations, Mr. Jones plays an integral role in the development and implementation of strategic initiatives and establishes key firm-wide operating disciplines. Mr. Jones is responsible for the overall management of company operations, including oversight of the firm’s administration, human resources, information technology, and all financial functions. More specifically, Mr. Jones is responsible for the day-to-day management of the firm profitability and cash management, the general oversight of the annual budget and strategic planning meetings, recruiting, training and professional development. Since joining DRG in 2006, Mr. Jones has led the way and directed the efforts in the establishment of an integrated operational foundation and has developed sound processes, procedures, and systems built to support the firm’s short and long-term strategies. These enhancements to DRG’s internal processes and procedures serve to support DRG’s team of professionals, and in turn, allow them to place their entire focus on servicing clients and providing best in class consulting services. Mr. Jones holds a Master of Business Administration (MBA) from Duquesne University. Mr. Jones is also a graduate of Saint Vincent College with a Bachelor of Science degree in Finance.