Executive Board

President, Black Professional Alliance



Winston G. Williams is the founder of PS Focus, LLC, formerly WGW & Company. The company began in the legal industry in 1997 providing accounting software consulting and training.  Today, the company provides management consulting services to a variety of industries in all six areas of management: Human Resources, Information Technology, Operations, Marketing, Financial and Facility.


In 2013, Mr. Williams co-founded the Capital City Black Film Festival with the mission to provide burgeoning Black filmmakers from across the nation an opportunity to showcase their works in one of the top cities in the United States for independent filmmakers, Austin, Texas.  CCBFF also educates filmmakers on the vast resources available to them in Austin and in Texas.  Mr. Williams serves as the Executive Director of the Capital City Black Film Festival.

Mr. Williams obtained a BA from the University of Texas at Austin. He completed post graduate courses at Southwest/Texas State University.  In addition to consulting, he currently serves as President of Black Professional Alliance, Executive Director of the Capital City Black Film Festival; Spectrum Theatre Company’s Board of Directors/Treasurer; Texas Exes Black Alumni Network Committee/Treasurer; Pecan Street Association’s Board of Directors and Austin Public/Community Media Advisory Committee.  Mr. Williams has played lead male roles in several short films and has published his memoir, “Would You?”  He is also a Life Member of the Texas Exes and a member of Alpha Phi Alpha Fraternity Incorporated.

Past President (Emeritus), Gregory Harrington



Gregory Harrington was born and raised in Tickfaw, Louisiana. He graduated from Jackson State University with a Bachelor of Science in Computer Science in 1997.  He was initiated in Alpha Phi Alpha Fraternity incorporated on November 20, 1999 @ 8:20pm to Gamma Eta Lambda chapter Austin Alumni, where he has served in many leadership roles. He is also the father of 2 daughters, Amaya Tryellle Harrington and Madison Symone Harrington. He currently works at Dell Technologies for almost 12 years, where he, currently, is a Channel Account Manager. He has led the Black Professional Alliance as the President and recently transitioned to the president emeritus. He has led the National Society of Black Engineers Austin alumni chapter as well as regional leadership roles. He’s won a number of awards with one being the 2011 leadership Austin Ascendant Award recipient. He’s a member of the 2006 class of Leadership Austin’s Essential Class. The Ascendant Award was mainly awarded for his great work with the Back To School Parade that he founded in 2008, where the mission is to celebrate education and the return to school in the form of a parade and to use the proceeds to purchase school supplies for those who need them. His gift for public speaking started as a young boy and has continued to thrive as a motivational speaker and Master of Ceremony.


Vice President, Black Professional Alliance


Dinita Caldwell has been supplier diversity director of Visa since July 2017.  In this role, Mrs. Caldwell develops strategy to advance the Supplier Diversity program and manages the implementation of sustainability initiatives.

Mrs. Caldwell joined Visa from the Texas Department of Agriculture (TDA) where she was a senior advisor to the deputy commissioner for the Historically Underutilized Business and Minority Women Business Enterprise programs.

Prior to her role at TDA, she spent more than 10 years in a variety of management and director positions as a supplier diversity professional.  Most notably, Mrs. Caldwell was the business development manager/disadvantaged business enterprise officer of the Capital Metropolitan Transportation Authority in Austin, Texas, where she managed Title VI and Environmental Justice programs.

 In 2016, Mrs. Caldwell was inducted to the Wall of Honor as a “Soaring Cardinal” by her hometown school district for distinguished performance in her career.

 Mrs. Caldwell holds a BA in public relations and organizational communications from Michigan State University and is a proud member of Delta Sigma Theta Sorority, Incorporated.

Treasurer, Black Professional Alliance



Roger C. Davis is originally from Chicago, Illinois, but has lived in Austin, Texas since January, 1987. He is married with three children. He graduated with a Bachelor of Science Degree in Accounting from Florida A&M University in May, 1984. He currently works as a Customer Account Management Representative with 3M in northwest Austin, Texas. He is also a Tax Specialist with H&R Block and Licensed Life, Health, Property, & Casualty Insurance Agent with Primerica. He is a Founding Member of Black Professional Alliance (BPA) and currently serves as Board Treasurer, Greater Austin Black Chamber (GABC) Board Member, 3M Austin African American Network (AAN) Co-Chair, National Association of Black Accountants (NABA) Past President, and Austin Area Church of Christ Basketball League Commissioner. He proudly serves as a Church of Christ at Eastside Care Group Leader, Bible Class Teacher, and member. He enjoys time with family, sports, movies, and serving the community.



Secretary, Black Professional Alliance



Ms. Martin is an attorney with a legal career that spans almost twenty years and includes criminal prosecution with the Maricopa County Attorney’s Office in Phoenix, Arizona where she prosecuted over 50 felony and misdemeanor trials; Senior Counsel of Wells Fargo Bank, where she focused on financial privacy and advised bank officials on compliance with state and federal banking regulations relating to consumer financial data; and General Counsel of the Texas Youth Commission.


Currently, Ms. Martin serves as an attorney with the Texas Health and Human Services where she focuses on Privacy and Compliance.  In this role, she supports executive management and program staff in data breach investigations and provides guidance on compliance with various regulatory reporting obligations, internal remediation processes, and policy development. Ms. Martin also provides counsel on the daily operations of business units to ensure compliance with state and federal regulations and the implementation of internal data protection best practices, processes, and procedures to ensure the privacy and security of consumer and employee information and serves as a leader in the investigation and resolution of incidents stemming from the unauthorized acquisition, access, use or disclosure of consumer confidential information.


She obtained her Bachelor and Master of Arts degrees from Prairie View A&M University and earned her Juris Doctor degree with honors from Thurgood Marshall School of Law at Texas Southern University in Houston, Texas.


Ms. Martin enjoys serving as her son’s personal chauffer to scouting, swimming, and karate events. When she has time for herself, she is novice photographer and enjoys dancing.


Program Coordinator, Shea Warren


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Chair, Communications Committee, Ronnie Russell



Ronnie Russell is a retired Infantryman in the United States Army; Served for 22 years.  He has been to Iraq twice and Bosnia once. His awards and decorations are the Bronze Star, the Meritorious Service Medal, Joint Service Achievement Medal and numerous Army Commendation Medals. He also is a former Infantry Drill Sergeant at Fort Benning, Ga. who has trained and spent countless hours training America’s Sons. Ronnie Russell was nominated for the NAACP Service Award in 2010. Ronnie is the 32nd recipient of the Blacks in Government Award in 2010. Co-Founder of Texas Black Pages which represents all 254 counties.