WP141 | 5 Communication Mistakes Made by Leaders with Michael Diettrich-Chastain, LCMHC

Whether you're leading a group practice, managing a team, or heading a project, your ability to communicate directly shapes your success.

Yet even the best leaders can unintentionally undermine their message—and their mission—by falling into common communication traps.

Michael Diettrich-Chastain from ARC Integrated recently shared five of the most common communication mistakes leaders make, why they happen, and what to do instead. Here's a breakdown of his thoughtful, experience-based guidance.

Ignoring Communication Style Differences

Not everyone hears things the way you say them. One of the biggest mistakes a leader can make is assuming their style works for everyone.

Michael points to the DISC model, which outlines four primary communication styles:

  • D (Dominant): Direct and results-focused

  • I (Influential): People-centered and energetic

  • S (Steady): Calm, team-oriented, and supportive

  • C (Conscientious): Detail-driven and precise

Each style has its own motivations and fears—and what resonates with one team member might completely miss the mark with another. As a leader, your first job is to understand your own style, then adapt your message to meet others where they are. Without this awareness, even your clearest message can be misunderstood.

Being Unclear About Expectations

Leadership isn't about hoping your team reads your mind. It’s about making expectations visible, measurable, and check-in-able.

Michael recommends the SMART framework (Specific, Measurable, Achievable, Relevant, Time-bound) not just for goal setting, but for everyday communication. Vague instructions like “do your best” or “get this done soon” leave too much room for interpretation.

A better approach:

🔹 What behavior do you want to see?

🔹 When do you want to see it?

🔹 How will success be measured?

🔹 When will you check in?

By clearly defining what you’re asking for, you remove ambiguity and build accountability.

Not Following Up

Even the most well-articulated plans can crumble without consistent follow-up.

Michael shares a model used at ARC Integrated called the Communication Map, which matches the severity of an issue with the frequency and detail of follow-up. For high-stakes situations, more communication is necessary up front, even if the ultimate goal is autonomy.

Skipping follow-ups often leads to missed deadlines, misalignment, and frustration on both sides. It’s not micromanaging—it’s responsible leadership.

Letting Fear of Reactions Get in the Way

This one hits close to home for many leaders, especially those in people-centered fields like mental health or education. We worry:

  • What if they get upset?

  • What if they quit?

  • What if they think I’m being too harsh?

But here’s the truth, Michael emphasizes: Clarity is kindness.

Being upfront about expectations and consequences helps your team members understand what’s expected and own their outcomes, good or bad.

Michael introduces the Success Map, a visual that outlines two paths:

  • One shows the opportunities available (raises, promotions, responsibility).

  • The other shows consequences for unmet expectations (write-ups, performance plans).

When people understand both the rewards and the risks, they can self-select how to move forward, without the leader having to constantly “manage” them.

Lack of Structure

All of these challenges come down to one root problem: no system in place.

When communication lacks structure, leaders are left to make reactive, emotionally draining decisions. But with clear frameworks—like the Communication Map or Success Map—you reduce stress, promote consistency, and create a shared playbook everyone can follow.

Michael reminds us that these strategies aren’t about becoming rigid—they’re about becoming clear, consistent, and compassionate.

Don’t Take It So Personally (Even Though It Feels Personal)

It’s hard not to take feedback or mistakes personally when you’ve built something from the ground up. Michael acknowledges this struggle and offers a tool to help: the 360 Assessment.

This tool gathers feedback from multiple people across different roles in your ecosystem to help you see if critiques are isolated or part of a broader theme. It’s an effective way to balance self-perception with how others experience your leadership, without spiraling into defensiveness.

Show Sponsor Arc Integrated

This episode is sponsored by Arc Integrated — a company that has truly transformed the way I lead. I’ve personally worked with Arc Integrated, and Michael was my business coach. He helped me restructure my leadership approach, delegate more effectively, and create systems that gave me fewer headaches and more time to focus on what matters. As a result, our team just had our best month yet — and I can confidently say that stepping into real leadership made it happen.

Arc Integrated specializes in helping leaders navigate change with confidence. Through personalized coaching, leadership training, and strategic planning, they help reduce stress, enhance communication, and build emotional intelligence within teams.

Visit arcintegrated.com/coaching to schedule your free leadership consultation. You’ll walk away with tangible strategies to drive the success of your practice.

Michael Diettrich-Chastain’s Resources

Arc Integrated

Michael on Instagram

Arc Integrated on Instagram

Michael on LinkedIn

Arc Integrated on Facebook

Michael on Facebook

Michael’s Book

Michael’s Card Deck

Links and Resources

The Wise Practice Summit

Wise Practice Membership

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Learn More about Wise Practice Consulting

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