To help people grow in new ways that ensure lasting success in the Modern AI Age — always powered by humanity.
We combine decades of executive leadership, coaching, and entrepreneurial expertise with cutting-edge tools that amplify human potential.
Our mission is to help you lead with clarity, perform with purpose, and grow with authenticity.
At The Growth Vanguard, we believe growth begins with people — not technology.
We are a human-centered coaching and consulting collective helping professionals, teams, and organizations thrive in the modern AI age.
Founded by Debra Bowers and Dar Yasseri, we blend leadership, mindset, and strategy to help clients unlock confidence, communication, and creativity — powered by humanity.

Co-Founder | Sales & Mindset Coach | Owner of Hexagon Media | Host of Deals with Heels
After more than 30 years in sales, marketing, and leadership helping others build their companies, Debra Bowers made the bold decision to build her own.
When her 20-year marriage ended, her children left home, and she lost her mother within a short span, Debra found herself starting over. “It was the first time in my life that I was the only person left to take care of,” she says. “That was the beginning.”
Through healing and rediscovery, she learned what it means to rebuild from the inside out — a journey that now defines her coaching philosophy and her favorite phrase: “It’s Debra time now.”
Today, Debra is the owner of Hexagon Media, a marketing and advertising agency in Oklahoma City that drives measurable growth for businesses. She is also the co-founder of The Growth Vanguard, where she empowers clients to strengthen their mindset, master sales communication, and elevate their personal brands.
As host of the entrepreneurial and female empowerment podcast “Deals with Heels,” Debra has shared her story on more than 50 podcasts worldwide. Her work blends professional expertise with emotional intelligence, guiding others to lead, sell, and live with confidence and purpose.

Co-Founder | Strategy & Growth Consultant | Executive Coach
Dar Yasseri is an accomplished executive coach, strategist, and educator with over three decades of experience developing leaders, organizations, and brands.
At Hilton Worldwide, Dar led executive and organizational development across nine brands and 3,000 properties, driving CRM transformation, leadership growth, and global performance. His work helped multiple Hilton brands achieve consecutive J.D. Power awards for customer excellence.
As Executive-in-Residence for Oklahoma State University’s School of Hospitality & Tourism Management, he achieved a 98 percent post-graduate placement rate and integrated modern industry technology into curriculum. Later, as Vice President of Student Experience at OSU–OKC, he led partnerships with Amazon and the City of Oklahoma City to launch innovative workforce and scholarship programs that created 800 new jobs.
Today, as Co-Founder & Chief Innovation Officer of The Spark Group, Dar builds high-performing cultures and investment systems that drive measurable, sustainable growth. At The Growth Vanguard, he channels this blend of corporate, academic, and entrepreneurial expertise into executive and leadership coaching — helping both rising professionals and seasoned executives lead with clarity, empathy, and confidence in the modern AI era.

Founded by Co-Founder Debra Bowers, Hexagon Media is an Oklahoma City–based marketing and advertising agency offering brand development, media planning, and creative strategy for business growth.
Together, Hexagon Media and The Growth Vanguard form a unique ecosystem — where business growth meets personal development, strategy meets storytelling, and people remain at the heart of progress.


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