Our Addison Team

Karl Graf is one of the world's premier Sandler Sales Performance Coaches and the Managing Partner of TrustPoint Management Group, based in Dallas, Texas. For more than three decades, Karl and his team have specialized in building high-performing, sales-driven organizations — working as transformational coaches at every level of the revenue engine, from individual sellers to frontline managers to senior sales leaders. With 30,000+ professionals trained and 1,400+ organizations transformed, TrustPoint is the partner companies turn to when they're ready to stop improving incrementally and start winning consistently.

After working every position at her previous company, she is eager for more growth and has a passion for helping others achieve their goals. With her 13 years of customer service and management experience, she brings extensive knowledge of developing relationships with clients. She specializes in growing and motivating teams and helping them reach their full potential.

Julie Jones is a business strategist, leadership development expert, entrepreneur, and author who helps organizations strengthen their people, elevate performance, and create sustainable growth.

As Senior Partner with TrustPoint Management Group, Julie brings a unique combination of entrepreneurial experience, operational leadership, and expertise in human behavior to help business owners, executives, sales teams, and leaders develop the skills necessary to grow organizations and build high-performing teams.

Julie’s relationship with TrustPoint began years ago when she served as a trainer and experienced firsthand the impact that intentional professional development, communication skills, and leadership training have on both people and business performance.

After leaving TrustPoint to co-found Texas Green Plumbing, Julie moved from teaching business principles to applying them as an entrepreneur and operator. Serving as Vice President of Operations, she invested in developing her entire organization—putting technicians, apprentices, customer service, marketing, and leadership team members through the same training principles she had once delivered.

That experience reinforced Julie’s belief that companies grow when their people grow. The skills that build trust, improve communication, strengthen leadership, and enhance the customer experience are not optional—they are the foundation of sustainable business success.

Following the successful sale of her company, Julie continued working with business owners as a business coach for a national best practices organization, helping skilled trades companies improve leadership effectiveness, operational systems, customer experience, profitability, and team performance.

Julie is also the Founder and CEO of Today’s Professionals Consulting & Development, where she has worked with organizations including Hewlett Packard Enterprise, American Airlines, Southern Methodist University, Texas Tech University, and Tulane University, as well as businesses across industries including professional services, construction, manufacturing, and home services.

She is the author of The Presence Effect: Mastering Attitude, Image, and Self-Management to Earn Respect and Drive Results. Through her AIM Methodology™ — Attitude, Image, and Self-Management — Julie helps professionals develop the presence required to lead effectively, influence outcomes, and create stronger relationships.

Julie’s expertise includes leadership development, executive presence, communication, emotional intelligence, client experience, sales effectiveness, and organizational culture. She is a certified Process Communication Model® (PCM) trainer and certified Ziglar Legacy Coach.

Returning to TrustPoint Management Group as a Senior Partner represents a full-circle moment: from teaching the principles, to investing in them as a business owner, to proving their impact inside her own organization, and now helping other companies achieve the same transformation.

Julie believes businesses are built through people—and when leaders intentionally develop their teams, they create organizations capable of extraordinary growth.

Phil Chelf is a sales leader, strategist, and business growth advisor who helps organizations build scalable, repeatable sales systems that drive predictable revenue growth. With more than 25 years of experience leading high-performing sales teams across manufacturing, B2B services, and technology, Phil brings executive leadership, operational discipline, and strategic clarity to every client engagement.

As a Senior Partner at Trustpoint Management and Founder of CRC Sales Accelerators, Phil works with business owners, CEOs, and sales leaders to strengthen sales performance by aligning strategy, process, people, and technology. His expertise includes sales process development, pipeline management, prospecting systems, team coaching, performance metrics, and revenue growth strategy.

Rooted in the Sandler methodology, Phil's approach goes beyond sales training. He helps clients build the mindset, habits, and systems that create lasting behavioral change and measurable business results. Combining the perspective of an executive with the hands-on experience of a sales practitioner, Phil helps organizations create sustainable growth and long-term success.

Matthew Neuberger is a nationally recognized business development expert, who specializes in executive sales consultation and sales productivity training. A dynamic presenter and trainer, Matthew helps industry leaders formulate successful management, sales and prospecting strategies daily. Matthew shares his experience in developing and executing management, recruiting, and sales tactics.

Matthew is an authentic, enthusiastic speaker, consultant, and coach who can inform, as well as motivate Presidents, CEO's, other Senior Managers and Sales Professionals. By focusing on buyer's and seller's attitudes and behaviors, not just techniques, Matthew’s clients are able to achieve "superior selling" results.

His authentic, high-energy and motivational style of speaking inspires audiences of all levels, making him one of the most sought-after speakers in the business.

Tanya has a diverse and impactful career with over 25 years of dedicated service in sales and revenue generation.Beginning with a foundation in administrative tasks and customer support, she transitioned to Sales Coordinator within T-Mobile's retail division. Here, she managed sales documentation, oversaw inventory and finances, and provided essential customer support to ensure a great customer experience.Her dedication and experience led to a role as a Sales Development Trainer to support the retail stores. She delivered instructor-led training on products, services, system operations, and enhancing the customer experience. Through growth and acquisition, her role expanded further, requiring extensive travel across the United States to facilitate the rollout of new initiatives and onboard employees.After nine years as a Sales Development Trainer, she transitioned to the Virtual Training Team for the last 15 years of her T-Mobile career. Here, she played a pivotal role in onboarding new T-Mobile employees nationwide.Leveraging the knowledge and skills she gained through her career, Tanya passionately provides guidance and consulting for revenue growth and business success to Neuberger & Co. clients.

Linc Miller is recognized with a track record of generating over $1 billion in sales across multiple companies and with top-performing sales executives.

Through Sandler Training, Linc delivers transformational strategies that bridge the gap between classroom theory and real-world sales performance. His hands-on approach to sales and management training is rooted in measurable ROI and lasting behavior change.

Linc works side by side with business owners, sales leaders, and teams to implement tools and techniques that drive real growth. Whether it's unlocking untapped potential or accelerating already strong performance, his mission is clear: to take individuals and organizations from first gear to top speed.

Alana is a sales and business development expert with extensive, diversified global sales experience. Alana is a results-driven professional, skilled at growing businesses, developing winning sales leadership strategies and customer care best practices.Alana began her career working for a leading global consumer products company, SC Johnson & Sons, as Team Leader/Packaging Engineer in research and development. She executed several new product launches and cost saving initiatives.Known for her insight in the area of streamlining success, Alana joined Sandler more than 11 years ago.Alana helps clients increase productivity and profit by developing high performance behaviors, winning attitudes and superior sales and management techniques. Alana is a dynamic speaker and trainer who is never satisfied with status quo for herself or her clients.

Tom Niesen spent 14 years in upper sales management and marketing positions with Polaroid and Fuji Film. There he built sales teams and began to understand the importance of having the right people, processes, and culture.Today, he blends his own experiences with nationally proven training and evaluation tools from The Sandler Sales Institute, Objective Management Group, and Extended DISC, to teach a unique brand of sales training and personal development.

David Doherty has led sales and marketing teams ranging from technology start-ups to Fortune 500 companies across a wide-variety of industry segments. David specializes in business to business selling.David has joined Sandler to help business owners, CEOs and senior executives build strategies for predictable and sustainable revenue systems, develop high-performing sales teams, break down barriers to growth and unlock the up-side potential of motivated companies.

Eric Dunn knew the day he became a client of Sandler by Coffman Group that it was a place he wanted to be a part of for the rest of his life. Dunn was first exposed to Sandler sales training programs through his employer, FreightPro, a transportation/distribution company. Once in training, he realized the need to adjust his sales practices immediately, eventually demonstrating dramatic results companywide. Dunn is quick to admit that his early days in professional sales were full of road bumps and detours, but it was his determination to become great that brought him success. Realizing a much larger opportunity with Sandler by Coffman Group, Eric joined the company in 2003 as an associate and soon became a partner in 2018. He became the sole owner in 2023. His unique communication skills and coaching abilities stem from a wealth of knowledge and experience in both the corporate and entrepreneurial sectors, with his main focus on helping companies build customers, relationships, and bottom-line profits. Companies learn how to achieve market dominance through Dunn’s specific strategies designed to out-market, out-sell, and out-service the competition.

Brian has joined Sandler to help business owners, CEO’s and other executives maximize their output and ultimately grow revenue. He brings a tremendous amount of relevant business expertise to the table. Brian has been fortunate to apply many sales systems, but has found none more enduring than Sandler. He has developed many common-sense resources and examples as a result. Brian is ready to help business leaders unlock the vast potential that exists within their entire organization.

Gerry is one of the fortunate people who actually discovered and made his way to his true niche in life. He found that niche to be in sales training, and his dedication to the Sandler Sales System is unparalleled.Never satisfied with things that just stay the same, he has an incredible passion for growth. His commitment to helping his clients improve results is never-ending, but he does admit to some frustration if he observes that he is more committed to his client’s growth than the client themselves.Gerry Weinberg has been called dynamic as well as an over-achiever and exhibits a mental toughness that has yielded over 35 years of success in sales, sales management and business development. Gerry has found that by focusing on buyers and seller’s attitudes and behaviors, not just techniques, Gerry’s clients are able to achieve superior selling results. His track record speaks for itself, as Gerry has helped hundreds of executives, managers and sales professionals triumph over the challenges that inhibit their success.

Josh can help you grow your revenue, keep your clients, and upskill your managers and leaders. To do this, he pulls from a long career helping a wide array of companies with B2B sales, demand generation, and marketing analytics.As a coach and presenter, Josh combines his love of teaching sales with his abilities as a stand-up comedian and commercial actor to keep material fresh, impactful, and fun to watch.

Tom Mulligan brings a record of uninterrupted success in sales and sales training. He is an award-winning performer at the fortune 500 level and has helped thousands of small businesses achieve their goals. He understands business owners because he is one.Tom’s background in media, advertising, and online marketing has taught him the problems small and mid-size businesses face in today’s market. After years of working with more traditional sales models he has come to understand that with changing times, we need changing techniques without jumping on the latest fads or tricks. With Sandler Training he has found both a proven system and one that is best to business in the internet age.He is known for his unrelenting enthusiasm and energy making him highly sought after to coach organizations looking for immediate improvement. When you are ready for real results, call on Tom and the Coffman Group. You and your business deserve the best.

Troy was introduced to Sandler in 2001 with dramatic professional and personal results. Realizing the Sandler system was not only different; it was decades ahead of its time, and it had benefited tens of thousands of salespeople and sales managers including himself. As a result, Troy formed the Houston branch of Sandler Training in 2003. Over the last eighteen years, he has consulted and trained thousands of sales leaders and salespeople and continuously worked towards becoming the most recognized and respected sales solutions company in the Greater Houston area.

Carlos Garrido is a strategic business developer with over 30 years of experience, now a sales alchemist turning struggling teams into million-dollar closers. Carlos's mission is to revolutionize sales. He's not here to make friends; he's here to make millionaires. With a "we sell or else" mentality, Carlos leverages decades of insights to push business owners and sales teams beyond their comfort zones, delivering strategies that transform results.

Specializing in Premium Selling, Pipeline Performance, and Conviction-based Techniques, he helps clients uncover million-dollar opportunities they never knew existed. Carlos brings the fire, focus, and time-tested frameworks to elevate your game.

Sarah received her BBA from Florida Atlantic University in Advertising and has built her career in client relations – creating pathways from customers to resources for success. With an empathetic approach, Sarah investigates her client’s needs to build a solution that fits their customized situation.

Mena Gonzalez is dedicated to delivering exceptional client experiences by combining proven best practices with a personal, results-driven approach. With a focus on excellence and impact, Mena empowers clients to achieve real growth—whether it’s through refining processes, enhancing performance, or driving meaningful outcomes.

By leveraging her expertise and a deep commitment to client success, Mena helps individuals and organizations go beyond “business as usual” and reach new heights of effectiveness and satisfaction.

Jubelka is a highly-motivated and highly-reliable team member, who ensures that the customer is at the heart of all that we do.Her ability to identify critical customer-based issues, get the job done, and make sure everything runs smoothly plays an integral role in Absolute’s success. Her fine organizational skills and attention to detail ensure that customer communication and satisfaction are second to none.

Matt has been actively involved with Sandler Training since 2002. During his career, he has relied on his Sandler training to not only be a consistent top producer but also to be a coach and mentor for many of his colleagues over the years. As a Sandler associate, he has helped a number of his companies develop a process for hiring salespeople, and obtain more qualified prospects/ opportunities in a very short period of time. His success is attributed to his loyal service at a level at which his clients consider him a trusted and valued partner.

Greg joined the Sandler Sales team in June 2012 as a sales trainer and sales force developer. Greg has been actively involved with Sandler Training since 2009. His almost 10 years of success in sales & business development in the advertising industry has brought him to this point . As a Sandler Trainer, he aims to help companies and individuals elevate their sales to new levels by eliminating unpaid consulting and assisting his clients in overcoming obstacles to their own success. Greg is a graduate of Albion College. He resides in Novi, MI with his wife where they are currently planning their next adventure.

Monica is a goal-driven leader, with a project management background to aid in project completion, strategic planning, and achieving company goals. She helps the team by giving them the right tools, easing communications, understanding their complex challenges, and guiding them toward their individual goals.

Ashley Tengler brings deep Sandler expertise and a passion for empowering clients to her role as Client Success Manager with Gerry Weinberg & Associates. Her connection to the organization runs deeper than a job title. After beginning her Sandler journey with this very franchise more than a decade ago, Ashley spent recent years contributing at Sandler’s home office, gaining valuable experience in supporting franchise partners and elevating client success across the network.

Now, she returns to Sandler with renewed energy and a commitment to enhancing the client experience. Stepping into the role previously held by longtime team member Lynne, Ashley is honored to continue a legacy built on trust, service, and meaningful relationships.

Known for her ability to listen, understand client needs and deliver solutions that drive impact, Ashley is dedicated to helping individuals and teams get the most out of their Sandler training experience. Her goal is simple: ensure every client feels supported, equipped and confident in their journey toward growth.

Meet our COO, Dawn Ostrega! With a background in desktop publishing, technical documentation, and experience as an office coordinator, Dawn has joined our team to help organize, update and streamline processes. Utilizing her experience, attention to detail and process orientation, along with her approachable and pleasant demeanor, Dawn is exactly what is needed to contribute to our continued growth!

Nikki Neuberger brings energy, creativity, and strategic insight to her role as Integrator at Neuberger & Company. Nikki plays a key role in aligning teams, enhancing cross-department collaboration, and turning big-picture ideas into real-world results.

With a background that blends performance and business acumen, Nikki is known for her adaptability, forward-thinking approach, and ability to foster synergy across an organization. Her commitment to operational excellence and her people-first mindset make her an invaluable asset to the team—and a catalyst for growth.