Retirements and Promotions Around the Region

At Cornerstone League, we’re proud of our members’ individual milestones and professional advancements. Here’s this week’s significant news.

Tim Lyons Retires from TTCU; Shelby Beil Becomes New CEO

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Shelby Beil stepped into a new role as president/CEO of TTCU Federal Credit Union on Oct. 1, replacing Tim Lyons, who held the role for 13 years. 

Lyons served TTCU for 35 years, joining in 1989 when the organization had less than $200 million in assets. He was named president/CEO in 2011. TTCU has grown to $2.6 billion in assets and 155,000 members.

With a 17-year tenure at TTCU, Beil’s most recent role as EVP/CFO has been instrumental in shaping the organization’s success, especially in establishing strong fiscal policies designed to help TTCU weather any economic conditions. Beil deeply understands the principles of a credit union and genuinely embraces the credit union motto of “people helping people.”

“Tim has led the credit union with an eye for innovation and an unwavering commitment to integrity,” Beil said. “His dedication to the financial empowerment of our members and community service has shaped TTCU to be more than a brand—instead, it feels like a family. This legacy will provide a foundation for everything we do moving forward.”

Over the past few decades, TTCU has been on a growth trajectory, allowing it to better serve its members by expanding TTCU’s physical footprint. Since 2011, nine new branches and a new corporate headquarters have been built. TTCU merged with NEO Federal Credit Union in Miami in 2013, adding 3,000 new members to the TTCU family. Lyons said this helped to maintain credit union services in far northeast Oklahoma. TTCU’s 13% capitalization ratio is well above the 7% that NCUA considers a well-capitalized credit union.

TTCU has also embraced technology, transforming it into a digital-first credit union. A modern digital banking platform was launched in 2023, and TTCU continues to implement AI, robotic process automation, and business intelligence productivity improvements.

TTCU has donated nearly $2.6 million to Oklahoma schools through its School Pride® program, created in 2007 to give back to local schools. TTCU members select from among 67 debit card designs honoring area schools. When members use their debit cards, TTCU donates financially to the school. In addition, in 2020, TTCU launched the TTCU Cares Foundation, which has given nearly $100,000 to teachers experiencing financial hardship. TTCU has also engaged with the community, supporting the Tulsa Area United Way and the Tulsa Regional Chamber. The credit union has become the title sponsor of the TTCU Tulsa Run.

Allegiance Credit Union Names JC Reavis as Next CEO

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Oklahoma City, Okla.-based Allegiance Federal Credit Union has announced that JC Reavis will be its next president/CEO following the retirement of current president/CEO Amy Downs in March 2025. Reavis is currently ACU’s EVP/chief operations officer.

“JC has been instrumental in ACU's growth and success. I am confident he is the right leader to uphold our credit union’s legacy while also guiding us to an even brighter future,” said Downs.

“Selecting Allegiance's next president and CEO from within the organization highlights the strong leadership we already have," said Lance Haffner, Allegiance board chair. "The board is immensely grateful for Amy’s decades of service and the solid foundation she will leave behind. We are thrilled JC Reavis has accepted the role, having proven his leadership through major strategic initiatives, such as successful online banking and core conversions, and, most recently, the realization of our yearslong desire to open Alianza por Allegiance Credit Union, a community-designed branch set to serve OKC’s Hispanic population intentionally. JC's qualifications, vision, and deep connection to ACU make him the ideal leader to guide our credit union into the future.”

Reavis has been at the $350-million credit union for 12 years and has served on the executive management team since 2018. In his current role, he oversees retail operations, lending, marketing, collections, host systems, project management, training, and IT functions. Reavis has 17 years of experience in the financial services industry.

"I am deeply honored to be named the next CEO of Allegiance Credit Union,” said Reavis. “It will be a privilege to continue serving our members and communities in this new capacity, building on the strong foundation in place. I look forward to leading our talented team into an exciting future, with a continued focus on member service, innovation, and growth.”

Reavis earned the Certified Credit Union Executive designation after graduating with honors from Southwest CUNA Management School in 2018 and is set to graduate from CUES’ CEO Institute in 2025. He also holds a Bachelor of Business Administration from Northeastern State University.

RBFCU Promotes Alexander Aguillen to Vice President

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Randolph-Brooks Federal Credit Union, headquartered in Live Oak, Texas, has announced Alexander Aguillen’s promotion to VP of enterprise fraud management.

"I have worked with Alex for many years, and it has been a pleasure to watch him grow as a leader," said Brian Munsterteiger, RBFCU SVP of enterprise fraud and operations compliance. "Alex has played a vital role in creating and growing the Enterprise Fraud department over the last four years."

Aguillen's promotion follows years of high-profile work on behalf of the $17.7 billion credit union. He has created fraud awareness through media outlets in Texas and fostered a drive within RBFCU fraud management teams to implement cutting-edge ideas and innovative strategies. He has appeared as a financial fraud analyst on KSAT-TV in San Antonio and WFAA-TV in Dallas-Fort Worth.

Aguillen has over 20 years of experience in the financial services industry, 15 dedicated to fraud prevention and detection systems. He joined RBFCU in July 2015 by working overnight in card fraud. He has built his expertise by analyzing and detecting issues with payment card transactions, and his exemplary work led him to supervisory roles as early as 2017.

"His leadership has not only cultivated a strong culture of fraud prevention, but he has also become the face of fraud education (quite literally) with his dedication to informing the community on fraud tactics and how to mitigate them,” said Sonya McDonald RBFCU EVP/COO. “The hard work and passion for his job have been contagious to the team, and this promotion is extremely well deserved.”

Yates Tapped as AVP Payments Growth/Product Management at Greater Texas CU

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Amanda Yates has joined Greater Texas Credit Union as AVP of payments growth and product management. With nearly $1 billion in assets, the credit union is strengthening its payments team to capitalize on payments' growing dominance as the consumer choice for everyday spending and moving money.  

In her 20-plus-year career in financial services, Yates has worked for large card issuers and midsize financial institutions. She has grown the transaction volume of payment portfolios and identified, developed, and launched new payment products and services to support consumer needs. In the last eight years, Yates oversaw the consumer payments product portfolio for University FCU in Austin. During her tenure, the portfolio experienced exceptional growth and contributed to a significant portion of the credit union's revenue.

“Like most consumers, our members use payment methods such as debit and credit cards daily to do everything from purchasing gas to checking out at the grocery store,” said Jason Endsley, vice president of payments strategy and operations. “Payment services like these empower our members with essential spending and credit capabilities, We are creating a dynamic payments team with the experience to develop payment experiences that meet and exceed our members’ needs.” 

Yates has a Bachelor of Science from the University of Delaware. In addition to driving payment strategies, Yates is a community volunteer who supports the annual Angel Tree program, the Ronald McDonald House, and others.