Jeffrey B Chatlos 

2301 Turning Leaf Ln 

Plano, TX 75074 

310-776-0657  

August 6. 2024 

To Whom it May Concern, 

I am writing to recommend Ronald Windley, who has been an invaluable member of my team for the past two years in his role, Mr. Windley has been instrumental in assisting business leaders with the planning and execution of trials, as well as performing comprehensive statistical analysis on the trial results. 

During his time working for me, Mr. Windley has demonstrated a high degree of professionalism and subject matter expertise. He has also established himself as a trusted teacher, adept at interpreting statistical results and presenting them in a way that non-statisticians can understand and use to make sound business decisions. 

Mr. Windley’s primary focus has been on establishing trials for new technologies, including Artificial Intelligence, Machine Learning, and Generative AI for our call center and field operations. His deep understanding of these technologies has enabled him to provide insightful guidance on setting up trial and control groups, ensuring the most statistically viable outcomes. 

During his time with AT&T, Mr. Windley has gained exposure at all levels within AT&T, collaborating seamlessly with project managers, technology delivery teams, and executives. He is trusted across the organization to provide unbiased analysis of trial results, empowering leaders to make informed decisions, even when the data suggests no significant benefit from the new technology. 

Mr. Windley’s uncommon competency lies not only in his statistical analysis, but also in his ability to communicate complex to diverse audiences. Whether his audience is deeply familiar with statistical analysis or new to the field, he excels in tailoring his explanations to ensure clarity and comprehension. He takes great care to ensure his audience not only understands the results but also appreciates their significance and the rationale behind his recommendations. 

I have no doubt that Ronald Windley will be a tremendous asset to any organization he joins or consults with. His expertise, communication skills, and dedication to excellence make him an outstanding professional. Should you have any questions about Mr. Windley’s abilities, please do not hesitate to contact me. 

Thank you, 

Jeff Chatlos 

Director – Technology 

AT&T Services, Inc