Meet Stu Schlackman

Relationship Selling Expert helping sales managers develop customer-ready sellers through the Four People Personality Styles and servant-selling principles. 

Stu Schlackman is a Relationship Selling Expert, author, speaker, and sales trainer who helps sales managers develop new and recent hires into confident, customer-ready sellers. His work brings together relationship selling, the Four People Personality Styles, and the servant-selling principles from his latest book, The Servant Seller.

After 21 years in corporate sales and 16 years as a sales trainer, speaker, and consultant, Stu understands both sides of sales development: what it takes to succeed in front of clients, and what managers need in order to help sellers improve.

Stu knows how much pressure sales managers feel when new sellers are eager, trained, and still not quite ready for the realities of client conversations. His work helps bridge that gap by giving sellers a practical way to understand and serve the person in front of them—so they can build trust sooner, make fewer early mistakes, and move into real selling with greater confidence.

That insight led Stu to develop his Four People Personality Styles framework, a practical tool that helps sellers recognize client differences and adapt their approach. For sales managers, the framework provides a common language for coaching new and developing sellers toward stronger client conversations, fewer early mistakes, and more consistent performance.