Matrix Org Chart vs. Functional: Drawing Dotted Lines

A matrix org chart shows something a normal chart hides: the person who signs your review often isn’t the person who decides what you work on this week. One manager owns the solid line. A project lead owns a dotted line. Both belong on the page.

Most companies don’t need a full matrix. They need a functional chart, grouped by department, with a handful of dotted lines drawn honestly. This post covers how the two structures differ, when each fits, and how to draw dotted-line reporting so readers know which line wins when two bosses disagree.

If you haven’t drawn a chart before, the step-by-step org chart guide covers the basics. Here we’re dealing with the second boss.

Functional charts: one boss, grouped by department

A functional org chart groups people by what they do. Engineering under the CTO, sales under the VP of Sales, finance under the CFO. Every person has exactly one line going up. It’s the default shape for most companies under a few hundred people, and it’s what you’ll find in most functional org chart examples.

                    CEO
      ┌──────────────┼──────────────┐
     CTO         VP Sales          CFO
      │              │              │
  Engineers      Account execs    Finance
  Designers      SDRs             Ops

The strength is clarity. Ask anyone “who’s your manager?” and you get one name. The weakness shows up when work crosses departments. A product launch needs an engineer, a designer and a marketer, and on a functional chart nobody owns that group.

How a matrix org chart adds a second line

A matrix org chart keeps the functional columns and adds a second axis: projects, products, clients or regions. People sit where a column and a row meet. Their functional manager holds the solid line. The project or product lead holds the dotted one.

                 CTO          VP Design      VP Marketing
                  │               │               │
Product A lead ┄┄ Engineer 1 ┄┄┄ Designer 1 ┄┄┄ Marketer 1
Product B lead ┄┄ Engineer 2 ┄┄┄ Designer 2 ┄┄┄ Marketer 2

   │  solid line = functional manager (reviews, pay, hiring)
   ┄  dotted line = product lead (day-to-day priorities)

This isn’t a niche setup. In a Gallup Panel study of 22,368 U.S. employees from late 2025, 69% said they work across multiple teams with different people every day or some days. That’s about seven in 10 of your staff with a reporting reality a plain tree can’t show.

So even if your official chart is functional, a lot of your people are probably living in a matrix already. The chart just doesn’t show it.

The clarity tax of a matrix

Dual reporting has a cost, and the research is blunt about it. In McKinsey’s article revisiting the matrix organization, written with Gallup’s chief scientist, only a minority of supermatrixed employees strongly agreed with “I know what is expected of me at work,” compared with 60% of non-matrixed employees. The authors also found matrixed organizations did better on collaboration, so the gains and losses can cancel out.

That’s the trade in one sentence. A matrix buys you cross-team collaboration and charges you in role clarity.

The chart can’t fix that, but it can stop making it worse. A matrix that exists in practice but not on paper is the worst version: people get pulled by two managers, and nobody can point to where the second line was ever agreed.

Drawing dotted-line reporting people can read

Use these rules, in order:

1. Draw the solid lines first. Build the full chart from primary reporting relationships. That’s the version HR systems store and the one that stays stable through project changes.
2. Add dotted lines as separate connectors. Microsoft’s guide to org charts in Visio says the same thing: move related shapes near each other, then add dotted-line connectors to show secondary reporting, or group a virtual team with a team frame. PowerPoint works the same way. The PowerPoint org chart guide shows the SmartArt steps.
3. Write a legend. Two lines: what solid means, what dashed means. Spell out who owns reviews and who owns priorities. Without it, half your readers will assume the dashes are a printing error.
4. Cap dotted lines at one or two per person. Past that, the chart turns into a subway map. Put the extra project leads in a note inside the box.
5. Date it. Dotted lines change with projects. A chart without a date gets trusted long after the project ended.

If your chart has dozens of dotted lines, draw two views instead of one: the functional chart, and a separate page per product or project team. The org chart examples by company size show where that split usually becomes necessary.

Matrix org chart or functional: which to draw

Pick the chart that matches how decisions actually get made, not the one that sounds modern.

Draw a functional chart if most work stays inside departments, managers assign the work their reports do, and cross-team projects are occasional. Add dotted lines for the few exceptions.

Draw a matrix org chart if people spend most of their week on product or client teams led by someone other than their manager. Typical cases: agencies staffed by client, product companies with standing squads, and multi-site companies where a site lead directs people who report into a function at headquarters.

Team size matters here too. Gallup’s span of control research puts the median team at about five to six people per manager, while the average rose from 10.9 direct reports in 2024 to 12.1 in 2025. When a functional manager has 12 or more reports spread across several projects, those project leads are already doing management work. Draw the dotted lines so it’s visible.

Whichever shape you choose, keep the data behind it simple: name, title, solid-line manager, and an optional dotted-line manager column. The org chart template guide shows that list format.

FAQ

What is a matrix org chart?

It’s an org chart where some people report to two managers: a functional manager on a solid line and a project or product lead on a dotted line. The chart shows both relationships, usually with solid connectors for the primary line and dashed ones for the secondary line.

What is the difference between solid-line and dotted-line reporting?

The solid-line manager usually owns hiring, reviews and pay. The dotted-line manager directs day-to-day work on a project or product. Your company decides the exact split, so write it down next to the chart.

Is a matrix structure better than a functional one?

Neither wins by default. A functional structure gives people one clear boss and works well when most work stays inside a department. A matrix helps when projects cut across departments, but it costs clarity, and Gallup’s research found the most matrixed employees were the least sure what was expected of them.

How do you show dotted-line reporting in PowerPoint or Visio?

Build the main chart from solid reporting lines first. Then add a separate connector between the person and their dotted-line manager and change its line style to dashed. Microsoft’s Visio documentation describes the same approach: add dotted-line connectors after the chart exists.

Can one person have more than one dotted-line manager?

They can, but each extra dashed line makes the chart harder to read and the person’s priorities harder to sort out. If someone has three dotted lines, list their project leads in a note on their box rather than drawing three connectors.

A chart that follows the reporting line

Hand-drawn charts go stale fastest in a matrix, because the dotted lines move every time a project starts or ends. We’re building something better. InstaCheckin People, our employee directory and org chart app, is coming soon.

A browsable org chart where you move up to a manager or down to direct reports is coming soon. Profiles listing each person’s manager, direct reports and assistants are coming soon too, along with sync with Google Workspace and Microsoft Entra ID, so the solid lines follow your identity system instead of a slide deck.

See how approaches compare on our org chart software page, then join the waitlist for InstaCheckin People, coming soon. We’ll email you when it opens.