STAFF
JIM
STOLLBERG
CO-EXECUTIVE DIRECTOR
JIM STOLLBERG, Co-Executive Director
Jim spent 30 years in business, holding leadership roles in the supply chain automation and management consulting industries. As EVP Global R&D at Dematic, he led their technology transformation, positioning them as a market leader in automation solutions for the world’s top e-commerce, retail, and manufacturing companies. In 2016, after the successful sale of the company to KION, a German public company, Jim assumed the role of EVP, Global Products and Solutions before stepping down in July of 2018.
He began his career in 1988 at Accenture (previously Andersen Consulting) where he led mission critical engagements for his manufacturing and supply chain clients, including Harley-Davidson, Miller Brewing, Johnson Controls and BF Goodrich. After leaving the firm in 1998, he spent one year as VP, Professional Services at EXE Technologies, a supply chain software company, before joining HK Systems, where he held a variety of leadership roles and assisted in the sale of HK Systems to Dematic in 2000.
In 2018, Jim founded Gemini Global Advisors to assist his clients in achieving similar results to what he has delivered throughout his career. His clients include venture capital, private equity and supply chain technology companies. He has served in several board and advisory roles with privately held market leaders, including Shipmonk, Autostore and Covariant.ai.
Like many, Jim first heard of Halftime through the book. It was given to him by a mentor when he was in his late 20’s. He loved it, but found himself committed to achieving “success” above all else. About 25 years later, that same mentor recommended he participate in the Fellows Program, which he did in 2019. It was nothing less than transformational.
Jim holds a Bachelor of Science in Mechanical Engineering from Marquette University and continued his education at INSEAD, where he completed the Global Executive Program. He serves on Marquette’s Supply Chain Advisory Board and volunteers for their Advanced Global Business Leadership program. He previously served on the Supply Chain Advisory board at Georgia Tech.
Jim has a passion for social enterprise and impact investing. He is an avid supporter of Global Brigades, a non-profit that helps to resolve health and economic disparities through sustainable means. He is also a lead investor in Eskala, a micro-finance/micro-equity fund that forms and invests in community-owned banks in Central America. The Stollberg Foundation supports a partial scholarship to first generation Marquette students interested in supply chain studies. The family also supports Compassion International (Thanawit from Thailand and Katarim from Columbia) The Children’s Outing Association (COA), Wounded Warrior Project, Folds of Honor, and the Wisconsin Humane Society.
Jim’s interests include travel (his career took him to a lot of interesting places) and all Wisconsin-based sports (Packers, Brewers, Bucks, Badgers). He is an avid Marquette Basketball fan. He also loves to read (primarily history, biographies and faith-based books) and enjoys the company of his family and friends.
Jim and his wife, Leslie, have been married since 1991 and reside in Brookfield, Wisconsin. They have a son, Justin, attending the University of Wisconsin – Madison studying Industrial Engineering. Their daughter, Lauren, is attending Marquette University studying Business and is a member of the MU Dance Team.
TOM
MCGEHEE
CO-EXECUTIVE DIRECTOR
TOM MCGEHEE, Co-Executive Director
Tom is the Co-Executive Director of the Halftime Institute.
Tom began his career by serving in the Marines for 12 years before moving to Texas, first to work on large outsourcing deals with EDS, then to become a Partner with Ernst & Young Consulting. As a leader in the area of group facilitation and collaborative work, Tom’s work extends to over 25 countries and has carried him from some of the biggest boardrooms in the US, to some of the world’s most innovative churches.
In 2001, Tom left E&Y to start his own company focused on group facilitation and collaborative work. It was then that God led Tom to Bob Buford, who was not only a mentor (and in many ways a father figure), but he also opened up to Tom through his Halftime and Leadership Network organizations, a world of Kingdom work even beyond the business network that E&Y had created. His work is his passion and his biggest blessing short of his wife and family.
Tom had the privilege of working with Bob Buford and Lloyd Reeb to help launch the Halftime Institute back in 2003. He designed and facilitated the initial materials and sessions and has enjoyed seeing how much that content has evolved into several program offerings today. Tom participated in the Fellows Program in 2020 and has found it meaningful to be back working shoulder to shoulder with his Halftime Family.
Tom grew up the son of an Air Force Officer and was born while his father was stationed in Japan. Tom attended Auburn University and became an Officer in the United States Marine Corps after graduation. During his service, Tom commanded several combat units, and served at the Marine Barracks, Washington DC.
Tom and his wife, Elaine, will celebrate 43 years of marriage in June. Elaine has been a spiritual helpmate and a leader while deployed and home. Their biggest challenge came with their oldest son’s 10-year battle with a drug and alcohol addiction. In 2009, he tragically died in a motorcycle accident, but the family was able to see God in the tragedy. Today, their two daughters and younger son are all married, and they have ten grandchildren and counting.
Also, he is the Founder of WaveChanger. A company focused on not only facilitating collaborative work, but also equipping organizations (businesses, ministries, and churches) to Go Faster Together!
GLENN
WILLIAMS
GLOBAL STRATEGY AND INNOVATION
GLENN WILLIAMS, Global Strategy and Innovation
GLENN WILLIAMS is the founder and CEO of LCP Global Pty Ltd, an innovative provider of proven, scalable leadership solutions that recognize the connection between personal well-being, resilience, and better performance. With more than 25 years working as a psychologist, executive, and board member in more than 40 countries, he is passionate about helping individuals develop capacity to lead themselves, lead others, and their businesses.
Prior to starting LCP Global in 2010, Glenn served as the Chief Operating Officer for Global Operations, responsible for global strategy, partnership development, marketing, operations, human resources, and product development.
Early in his career, Glenn worked in a regional sales role for a multinational company, before going back to university to study psychology and launching Pro-Fam Australia, which launched national initiatives focused on building stronger families and communities. This work expanded to Asia, North America, Europe, South Africa, and the Middle East.
In 2013, Glenn completed a doctorate through George Fox University in the U.S., focusing on the relationship between leadership character and performance. This expanded his understanding of how organizational culture, leadership identity, and well-being affect decision making and performance. This played a significant role in his own halftime experience, where he continues to help individuals align their successes, influence, and opportunities to build a legacy of significance.
Glenn is married to Natalie and they have three adult children.
LLOYD
REEB
FOUNDING PARTNER
LLOYD REEB, Primary Spokesperson
Lloyd Reeb is a successful real estate developer and owner of retirement housing who made a mid-life transition, looking for greater meaning, joy, and impact in his second half. To his surprise, he discovered that he was not alone in this journey and that many talented leaders are longing for midlife renewal.
Lloyd has had the privilege of investing 20 years helping leaders plan their second half. He helped launch the Halftime Institute, a global team that teaches, coaches, and connects successful men and women in pursuit of significance.
In Lloyd’s words, “When all you’ve done or own seems to matter less …and your heart craves more meaning, joy, and balance…when something triggers in your mind that you’re entering your second half of life and you’re unsure what your calling is for the next season… you’re in Halftime.”
Lloyd has taken the Halftime message around the world: speaking, teaching and coaching individuals through the journey. As a result, he understands the issues that surround your Halftime in a deep and practical way.
He is the author of From Success to Significance: When the Pursuit of Success Isn’t Enough, which is a roadmap for this mid-life transition. His book The Second Half: Real stories, Real adventures, Real significance provides compelling evidence that your second half could be the most creative and productive season of your life.
Lloyd and his wife, Linda, have written the book Halftime for Couples. They live in Charlotte, North Carolina. They have three adult children, all married, and two precious granddaughters.
Check out Lloyd’s articles:
RHONDA KEHLBECK
VICE PRESIDENT ADMISSIONS
RHONDA KEHLBECK, Vice President of Admissions
Rhonda spent her first half in education; her own (a Bachelors and Masters from Baylor and a Ph.D. from Fordham University) and helping others with theirs as speaker, lecturer, teacher, and Professor at Dallas Baptist University. She is also an author of a book for parents that encourages reading and writing with children.
The Pittsburg, Texas native met her husband at church, where he drew her name from a pool of 500 women to become her secret Valentine. Almost three decades later, she and Keith have two daughters who are married and now live and work in Oklahoma City. Rhonda and Keith find being intentional with their family even more fulfilling and important as they treasure their sons-in-law and one-year-old grandson, Louis.
As Vice President of Admissions, many find their Halftime journey begins by interacting with Rhonda. Her nurturing and caring spirit helps people get enrolled into the Halftime Institute.
She is a 2013 Halftime Institute alumna and considers Psalm 86:11 her favorite verse: “Lord, tell me where you want me to go and I will go there. With all my heart, I will praise you.”
“I first read Bob Buford’s book several years ago, but my Halftime really began when my youngest left for college. I knew then I didn’t just want another job, but wanted to give back to God by making a significant impact for His kingdom.”
Read Rhonda’s Article: 5 Indicators You’re In Halftime
Read Rhonda’s Biz Journal article co-written with Bob Buford
BOB
KARCHER
CHIEF OPERATING OFFICER
BOB KARCHER, Chief Operating Officer
Bob spent a large part of his career in the publishing and advertising industries. He served as a Chief Operating Officer in the Tribune Company, owner of the Los Angeles Times, Chicago Tribune, Hoy Publications, and multiple other properties operating in the print, broadcast, and digital media sectors. Following his publishing career, he spent several years in the nonprofit sector, serving in a variety of executive-level staff and board member roles. He now serves as Chief Operating Officer for the Halftime Institute.
Reading the book Halftime and attending a Launch Event in 2010 were foundation-setting opportunities the Lord used to move Bob into the work he now considers himself privileged to do as an author, speaker, and life coach. He earned a Bachelor of Science degree in Organizational Leadership from Biola University and is a Certified Halftime Coach.
Bob works at the Halftime Institute to support the growth and development of Halftime Coaches and our products and services.
Bob, and his wife Susan co-authored Who Are the Joneses Anyway?, a popular, best-selling book focused on helping others live the intentional, authentic lives they were created for. They are blessed to have four grown children and live in Orange County, CA.
- Read Bob’s Articles on the Halftime Blog:
- Learn more about Bob and Susan’s book and watch the book trailer HERE
TOM
GUTHRIE
ADMINISTRATION
Tom Guthrie, Administration
Tom spent over 34 years working in the energy field with Duke Energy. Since 1999, Tom served as a plant manager for Duke Energy in California, Indiana and North Carolina. In January 2012, Tom engaged with Halftime to determine how his skills and experience could best be used for kingdom purposes.
In December 2012, Tom left Duke Energy. In early 2013, Tom began his role with Halftime Carolinas as the CFO enabling him to utilize his organizing and financial skills. He also began coaching and facilitating Roundtables in 2015. In 2019, Tom assumed the additional role of COO with Halftime Carolinas. In 2021, Tom expanded his involvement in Halftime to begin leading all Administration for Halftime Institute.
Tom and his wife, Vonnie, have been married for over 36 years and now live in Greensboro, NC. They have two grown children.
DIANE
HAYES
EXECUTIVE ASSISTANT & COACHING COORDINATOR
DIANE HAYES, Coaching Coordinator
Diane Hayes joined Halftime in 2010 and brought a diverse background that included ministry, interior design, retail management, and property management. These career experiences strengthened her skills in servant leadership, project management, and problem-solving. Her raison d’être is simply to serve others through Christ’s love. She views each day at Halftime a divine opportunity to fulfill this calling.
Outside of work, Diane embraces her roles as wife, mother, grandmother, and friend with passion and excitement. She enjoys travel, outdoor activities, and using her creative gifts.
Diane and her husband, Darwin, live in Las Colinas, Texas, and attend Gateway Church in Southlake, Texas, where they actively serve in Gateway’s Volunteer Ministry.
ALYSSA HEFFLEY
PROGRAMS & MARKETING MANAGER
ALYSSA HEFFLEY, Programs & Marketing Manager
As the Programs & Marketing Manager for the Halftime Institute, Alyssa Heffley combines her creativity, strategic top CliftonStrength, and desire to serve others in her day-to-day life.
A native Texan, Alyssa grew up in the DFW area. She left the Lone Star State to attend The University of Alabama (Roll Tide!), where she graduated Summa Cum Laude and earned the distinction of Outstanding Advertising & Public Relations Graduate.
Prior to joining the Halftime Team in January 2017, Alyssa gained varied experience in promotional, marketing, and communications roles – both in the for-profit and non-profit sectors. From creating corporate promotional campaigns, to strategizing volunteer mobilization at a Food Bank, to developing a child sponsorship program for a school in Uganda, Africa, every step has prepared her for serving Halftimers in her sweet spot.
When Alyssa isn’t dreaming up creative ways to help people with smoldering discontent (a key indicator – you’re in Halftime!) find and fulfill their Ephesians 2:10 Calling through Halftime, she can be found leading Young Adults in the Dallas area through Bible Study Fellowship International or looking for a fun spot to enjoy live music.
One of Alyssa’s many favorite verses is Ephesians 3:20-21, “To Him who is able to do exceedingly, abundantly beyond anything that we could ask, pray, or think, according to the power at work within us, to Him be the glory forever and ever.”
RENI
FILBRUN
CLIENT EXPERIENCE MANAGER
RENI FILBRUN, Client Experience Manager
Reni Filbrun joined the Halftime team in December of 2015. A Grand Prairie, Texas native, Reni grew up in the DFW Metroplex with her parents, Phil and Tanna, and two sisters, Jara and Kali. She adores being a daughter, sister, aunt, and (sometimes excessively) a granddaughter. She graduated from Abilene Christian University in May 2014 with a Bachelor’s Degree in Youth and Family Ministry.
Reni has a heart for ministry, specifically to teen girls, and spent 3 years prior to joining the Halftime Team in Spring, TX serving as the Youth Ministry Intern at Bammel Church of Christ. There are very few things in life that bring Reni more joy than knowing she has affected a teen’s life in a positive way. She learned a love of sports from her father and runs as her main outlet to relax. “Go Cowboys, Go Buckeyes, Adios.”
Her favorite Bible verse is Romans 8:38-39 (with Psalm 46 a very close second), “For I am convinced that neither death nor life, neither angels nor demons, neither the present nor the future, nor any powers, neither height nor depth, nor anything else in all creation, will be able to separate us from the love of God that is in Christ Jesus our Lord.”
BONNIE PATTERSON
PROGRAMS & MARKETING COORDINATOR
BONNIE PATTERSON, Programs & Marketing Coordinator
Passionate about curating spaces and experiences that allow others to connect and grow, Bonnie Patterson serves as Programs & Marketing Coordinator at the Halftime Institute.
Bonnie grew up in Carrollton, TX and is a proud member of the fightin’ Texas Aggie class of 2018 (Whoop!). She returned to the DFW area upon graduating from Texas A&M University with a Bachelor’s Degree in Recreation, Park, and Tourism Sciences and minor in Business Administration.
Bonnie began her career working in a retail marketing capacity for a local beauty brand. Having benefited first-hand from a Christian leadership development program, she was excited to discover the ministry of Halftime and joined the team in July 2019. She enjoys spending time with friends, pursuing creative outlets, and volunteering as a Young Life leader for high school girls.
A foundational verse in Bonnie’s life is Galatians 5:1, “It is for freedom that Christ has set us free. Stand firm, then, and do not let yourselves be burdened again by a yoke of slavery.”