Rostrel product team responsibilities
Three circle Venn slide with every overlap owned
A three circle Venn slide is useful when the overlaps carry the meaning, because the shared ground between groups is where work most often goes unowned. This one maps the product, design and engineering team behind Rostrel, a fictional shift planner, and names an owner for each overlap.
What is on the slide
- Title
- Rostrel Team Overlaps. Who owns each overlap between product, design and engineering on the Rostrel shift planner.
- Circles
- Product: roadmap and pricing. Design: research and flows. Engineering: build and uptime. Centre: go or no go.
- Product and design
- Problem framing and research plans. Owner: Mia Tull, product lead.
- Design and engineering
- Component library and build feasibility. Owner: Arjun Bell, design.
- Product and engineering
- Scope, estimates and the release plan. Owner: Sione Kerr, tech lead.
- All three
- Go or no go on each release, every second Thursday. Owner: Mia Tull.
When this is the right slide
Choose this slide when three groups share work and the overlaps are where responsibility slips, so each shared region needs a name, a specific task and one owner on the record.
What to swap it for
Comparison: 2-Circle Venn with Side Item Lists. Swap to the two circle Venn with item lists when only two groups are involved and each side needs a list of what it owns beside its circle.
What this slide shows
A title reads Rostrel Team Overlaps, with a framing line: who owns each overlap between product, design and engineering on the Rostrel shift planner. On the left three translucent teal circles overlap, labelled Product at the top, Design at the lower left and Engineering at the lower right, with Go or no go written where all three meet. Under the circles a small legend repeats each set with its own work: Product, roadmap and pricing; Design, research and flows; Engineering, build and uptime. On the right, under the label Who owns each overlap, four numbered rows set out the shared regions. Product and design: problem framing and research plans, owned by Mia Tull, product lead. Design and engineering: component library and build feasibility, owned by Arjun Bell, design. Product and engineering: scope, estimates and the release plan, owned by Sione Kerr, tech lead. All three: go or no go on each release, every second Thursday, owned by Mia Tull.
When this is the right slide
Use it when a team or partnership has three groups whose work overlaps, and the overlaps are where things go wrong. Product teams, joint ventures, clinical and administrative services, and marketing, sales and service are typical cases. It is also useful in onboarding, to show a new hire where their discipline meets the others. It is the wrong slide when the groups do not really share work, because forced overlaps invite people to invent collaboration. It is the wrong slide when there are only two groups; a two circle layout with item lists beside each circle gives more room to what each side owns and to the shared ground between them.
How to adapt it
First, name each overlap by its work or decision before drawing anything. If an overlap is empty, the honest diagram may have two circles touching rather than three intersecting. Second, give every overlap one owner and write the name and role in the sidebar, then confirm each owner in the room. Third, put a decision at the centre with its cadence, because the triple overlap is usually where a shared call is made. For a service organisation, the circles might be clinical, administration and finance, with the centre being the weekly bed meeting. For a partnership, they might be the two firms and the client, with the centre being the change request decision. Whatever the setting, keep the labels in the circles short and put the detail in the rows, so that the diagram stays readable from the back of the room. Review the owners whenever someone changes role, since a Venn with a departed owner is worse than none. Keep the circle labels to a single word or two, so the diagram reads in a glance and the rows do the explaining.
What makes this slide work
The sidebar names overlaps, not circles
Product and design, design and engineering, product and engineering, all three. The four rows describe the shared regions rather than repeating what each team does alone. That is where cross functional work fails, and it is the information a new team member or an executive most needs from a diagram of how three disciplines fit together.
Every overlap has one owner
Mia Tull for problem framing and the release decision, Arjun Bell for the component library, Sione Kerr for scope and the release plan. One name per row turns shared responsibility into single accountability. The slide can be held up in a retrospective when something falls between two teams, and the answer is already on it.
The centre is a decision with a cadence
Go or no go sits where the three circles meet, and the sidebar says it happens every second Thursday. The centre of a Venn is often filled with a word such as innovation; here it holds the one decision that needs all three disciplines, with a date pattern the team can plan around.
Questions people ask
What should go in the overlaps of a three circle Venn?
The work or decisions that genuinely need two or three groups, named specifically. Collaboration is not an overlap; the component library is. Each overlap should be something that would fail if either group dropped it. If an overlap cannot be named, the circles may not really intersect, and a three column layout would be more honest.
Why give every overlap an owner?
Shared work without an owner is the most common gap in cross functional teams. When product and engineering both own the release plan, neither updates it. Naming one person per overlap does not mean they do the work alone; it means one person answers for it. That single line turns the Venn from a description into an agreement.
How much text fits inside the circles?
A label of one or two words per circle and a short phrase at the centre. The overlap regions are too small and too oddly shaped for sentences, which is why this layout puts the detail in a sidebar of four rows. Write the owners and decisions there, and let the circles show the structure.
When should a Venn slide be split?
When one overlap needs a process. If the release decision every second Thursday has a checklist and a sign off chain, give it its own slide. The Venn shows who shares what; a process slide shows how a shared decision is made. Keeping both on one canvas would shrink either the diagram or the steps.
Is a three circle Venn drawn to scale?
No. The circles are equal and the overlaps are fixed shapes; they show relationships, not sizes. If the audience might read circle size as headcount or budget, say so in the framing line. When sizes matter, a proportional diagram drawn from data or a simple table of headcounts per team is the honest choice.
How should a three circle Venn slide be presented?
Name the three circles quickly, then spend the time on the overlaps, one owner at a time, ending with the centre. Ask each owner to confirm in the room. The slide is most valuable as an agreement, and agreement happens when people hear their names attached to responsibilities in front of their colleagues.
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