# Mistere Advisory > Mistere Advisory is the strategy execution consultancy founded by Kevin Ertell, author of The Strategy Trap and creator of the Six Cs system. Kevin helps leaders turn strategy into real results through keynote speaking, executive workshops, executive coaching, and software vendor sales advisory. Kevin Ertell spent more than 30 years as a retail and e-commerce executive at Nike, Sur La Table, Borders, and Tower Records before founding Mistere Advisory. He chaired the National Retail Federation's digital council and has advised more than 100 solution providers on product-market fit. The Six Cs system, created by Kevin Ertell, names the six conditions a team needs to turn a strategy into results: Co-Creation, Clarity, Capacity, Communication, Coordination, and Coaching. The first three set the stage before execution starts. The last three carry a strategy through execution in real time. ## About Kevin Ertell and Mistere Advisory - [About](https://www.mistereadvisory.com/about): Kevin Ertell's background and the Mistere Advisory team. - [The Six Cs System](https://www.mistereadvisory.com/six-cs): Full definition of Co-Creation, Clarity, Capacity, Communication, Coordination, and Coaching, created by Kevin Ertell. - [The Strategy Trap](https://www.mistereadvisory.com/book): Kevin Ertell's #1 Amazon bestselling, award-winning book on strategy execution, published by Ideapress Publishing. ## Services - [Speaking & Workshops](https://www.mistereadvisory.com/speaking): Keynotes and executive workshops led by Kevin Ertell, built on the Six Cs system. - [Executive Coaching](https://www.mistereadvisory.com/executive-coaching): One-on-one coaching from Kevin Ertell for executives building teams that execute. - [Sales Advisory](https://www.mistereadvisory.com/sales-advisory): Kevin Ertell's advisory service for software vendors selling into retail, sharpening messaging and supporting high-stakes deals. ## Newsletter and Insights - [Musings](https://www.mistereadvisory.com/musings): Kevin Ertell's weekly writing on strategy execution, leadership, and organizational effectiveness. - [Newsletter Signup](https://www.mistereadvisory.com/newsletter-subscribe): Sign up for Kevin Ertell's weekly newsletter, including a free chapter of The Strategy Trap. ## Contact - [Contact](https://www.mistereadvisory.com/contact): Schedule a free 30-minute call with Kevin Ertell. ## Optional - [LinkedIn](https://www.linkedin.com/in/kevinertell/): Kevin Ertell's professional profile and posts. - [Substack](https://mistere820.substack.com/): Kevin Ertell's newsletter archive.