Bishop Kelley Softball Program Announces Coaching Updates for 2026–2027 Season
March 11, 2026
For Immediate Release
Tulsa, OK —
Bishop Kelley High School has announced updates to the Comets softball coaching staff ahead of the 2026–2027 season, promoting Zach Postoak to Head Softball Coach and welcoming Tiffany Brown as Assistant Softball Coach.
Postoak joined the Bishop Kelley community during the 2024–2025 school year and has quickly become an important part of both the academic and athletic departments. He began as a full-time substitute teacher before transitioning midyear to teach computer literacy while also serving as an assistant coach for both the baseball and softball programs.
Before arriving at Bishop Kelley from Owasso Public Schools, Postoak taught and coached in Oklahoma at Berryhill Public Schools and Cushing Public Schools, where he served as a head baseball coach and assistant softball coach while helping lead teams to district championships and postseason appearances. He also spent time coaching at Northwestern Oklahoma State University, where he earned his Bachelor of Science in Health and Sports Science.
“Zach has been a tremendous addition to our community,” said Bishop Kelley Athletic Director Lance Parks. “He’s already built strong relationships with our student-athletes and brings the energy, knowledge, leadership, and commitment we want leading our programs.”
Postoak expressed enthusiasm about the opportunity to lead the Comets saying, “I’m grateful for the opportunity to lead the Bishop Kelley softball program,” Postoak said. “This is a special community, and I’m excited to work with these student-athletes to continue building a program defined by hard work, teamwork, and pride in representing Bishop Kelley.”
In addition to his role with softball, Postoak also currently serves as the Interim Head Baseball Coach after stepping into the position earlier this school year.
Joining Postoak on the staff will be Tiffany Brown, who brings an accomplished collegiate playing background along with coaching and teaching experience.
A native of Catoosa, Oklahoma, Brown played at Pittsburg State University, where she established herself as one of the most dynamic offensive players in program history.
During her time with the Gorillas, Brown earned All-America honors and produced one of the most prolific offensive seasons in school history, hitting .452 while recording 90 hits, scoring 65 runs, and stealing 49 bases. Her performance ranked among the national leaders in multiple offensive categories at the NCAA Division II level.
Known for her speed, versatility, and competitive approach, Brown will assist with player development, game preparation, and continuing to build a competitive softball program at Bishop Kelley.
Brown currently serves as a health, nutrition, and physical education teacher in Catoosa Public Schools, where she also coaches softball and soccer at the middle school and high school levels. At Bishop Kelley, she will assist with physical education classes and the Blessed Stanley Rother Program for Academic Support.
“We are excited to welcome Tiffany to Bishop Kelley and the softball program,” Parks said. “She has a great playing background at Pitt State along with valuable coaching experience at the high school level. She will make a tremendous impact on our athletes and our program.”
Together, Postoak and Brown will lead the Comets softball program into the 2026–2027 season with a focus on developing student-athletes who compete with excellence, leadership, and character.
Bishop Kelley Mission
Bishop Kelley is a Catholic diocesan high school, inspired by St. John Baptist De La Salle, that carries on the teaching ministry of Jesus Christ by preparing students’ hearts and minds for a purposeful life.
About Bishop Kelley Softball
Bishop Kelley softball competes in OSSAA Class 5A and is committed to developing student-athletes who pursue excellence in competition, leadership, and character. The Comets program emphasizes discipline, teamwork, and representing Bishop Kelley with pride on and off the field.
About Bishop Kelley High School
Bishop Kelley High School is Oklahoma’s largest private high school and a life-preparatory institution rooted in the Catholic tradition. The school offers a faith-based education that fosters academic excellence, spiritual growth, and personal development. Bishop Kelley features a rigorous curriculum with more than 40 honors and Advanced Placement courses across a wide range of disciplines. With an average ACT score of 28 and an average SAT score of 1260, graduates are well prepared for college, with 90 percent attending four-year institutions. More than 65 percent of Bishop Kelley students participate in athletics, reflecting the school’s commitment to developing the whole person through competition, teamwork, and leadership. The Blessed Stanley Rother Academic Support Program provides individualized assistance for students with diverse learning needs.
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For Immediate Release Tulsa, OK — Bishop Kelley High School has announced the hiring of Holly Beers as the next Head Volleyball Coach, beginning with the 2026–2027 season. Beers brings a strong background in both high school and club volleyball, along with a commitment to student development that aligns with Bishop Kelley’s mission of forming young people in excellence, character, and leadership. Most recently Beers coached with Oklahoma Peak Volleyball Club in Oklahoma City, where she led multiple competitive teams and was selected by the Oklahoma Region Volleyball Association to coach Oklahoma’s U13 team at the USA Volleyball All-Star Championship in Madison, Wisconsin. She previously served as Head Varsity Volleyball Coach at Norman High School after two seasons as a varsity assistant coach. Beers has also contributed to athlete development through skill clinics with Oklahoma Peak and summer volleyball programming connected to the University of Oklahoma. Originally from Owasso, Beers attended Rejoice Christian School and went on to earn a bachelor’s degree in advertising with a minor in Spanish from the University of Oklahoma. “We are thrilled to welcome Holly to Bishop Kelley,” said Athletic Director Lance Parks. “She has been uniquely prepared for this opportunity through her experiences in high-level club and high school volleyball, and through the work ethic and tenacity she has demonstrated in all levels of coaching in Oklahoma. When the right person and the right moment come together, it inevitably turns into a blessing for us and the students in our programs. Holly’s passion for developing young women as competitors, leaders, and people of character makes her a perfect fit for Bishop Kelley.” Beers said she is honored to join the Bishop Kelley community and lead a program with such a proud tradition. “Bishop Kelley Volleyball has long been respected for its competitive spirit and strong culture,” Beers said. “I’m excited for the opportunity to build relationships with the student-athletes and help them grow both on the court and in life.” As head coach, Beers will oversee all levels of the Bishop Kelley volleyball program and work to continue the tradition of excellence established by previous generations of Comet athletes and coaches. In addition to leading the Comets volleyball program, Beers will teach in the Business Department at Bishop Kelley. About Bishop Kelley Volleyball The Bishop Kelley Volleyball program has a proud tradition of competitive excellence and leadership development within the OSSAA. For decades, Comet volleyball has been known for disciplined play, strong team culture, and student-athletes who compete with integrity while representing Bishop Kelley’s mission on and off the court. The program has produced numerous postseason appearances and continues to develop young women who pursue success in athletics, academics, and service. Through a commitment to teamwork, work ethic, and faith-centered leadership, Bishop Kelley Volleyball strives to prepare student-athletes for success long after their playing days are over. About Bishop Kelley High School Bishop Kelley High School is Oklahoma’s largest private high school and is considered a life-preparatory institution. It offers a faith-based education that fosters academic excellence, spiritual growth, and personal development. The school features a rigorous curriculum, including more than 40 honors and AP courses across a wide range of disciplines. With an average ACT score of 28 and an average SAT score of 1260, Bishop Kelley graduates are well prepared for college, with 90% attending four-year institutions. More than 65% of Bishop Kelley students participate in athletics, and the Blessed Stanley Rother Academic Support Program provides individualized assistance to students with diverse learning needs.
