Achilles' Heel Retrospective
Two of the oldest stories about hidden weakness, turned into a sprint retro: the vulnerability everyone knows about, and the risk that got in looking like a gift.
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The board
01
ACHILLES' HEEL
What's our single biggest vulnerability right now?
02
TROJAN HORSE
What snuck in looking like a win, but is quietly hurting us?
03
SHIELD
What's protecting us this sprint?
Achilles was invincible everywhere except one heel, and Troy fell not to a siege but to a gift its own soldiers wheeled inside the walls. This retrospective borrows both stories for one reason: teams are rarely hurt by the risks they're already watching. They're hurt by the one exposed spot nobody protected, and the one that arrived disguised as good news.
Achilles' Heel names the vulnerability the team half-knows about already — the single point of failure everyone quietly works around instead of fixing. Trojan Horse names something sneakier: a shortcut, dependency, or 'quick win' that looked completely safe going in and is quietly causing damage now that it's inside. A Shield column keeps the sprint from reading as all danger, naming what actually held the line.
When to use Achilles' Heel · Trojan Horse · Shield
- Teams that keep circling the same known weak point without ever prioritizing a fix for it
- After adopting a new tool, library, or process that felt like a win — a good moment to check for hidden costs
- When a retro needs a memorable, non-corporate framing to get people to actually name the risk out loud
- Reliability- or security-minded teams who already think in terms of single points of failure
How to run it in Retromik
- 1
Name the battlefield
Before writing, the facilitator states what's at stake this sprint — the release, the system, the deadline the team is defending. In Retromik, put it in the board's focus question so it stays visible above every column.
- 2
Create cards anonymously
Everyone adds cards to each column at the same time. In Retromik, cards stay concealed and anonymous while people write, so nobody anchors on the loudest voice.
- 3
Vote on what matters
Each person places a limited set of voting tokens on the cards they think deserve discussion. Limited tokens force real prioritization.
- 4
Discuss the top cards
Walk through the highest-voted cards one by one. The facilitator steers the focus; anyone can comment on any card.
- 5
Reveal and group themes
Authors are revealed and the facilitator drags related cards into named themes, turning scattered notes into patterns.
- 6
Commit to action items
Convert the discussion into specific, owned action items with due dates — the part most retrospectives skip.
Frequently asked questions
What is an Achilles' Heel retrospective?
A themed retrospective with three columns: Achilles' Heel (the team's known, single biggest vulnerability), Trojan Horse (something that looked like a win but snuck in a hidden cost), and Shield (what's actually protecting the team). It gives two different shapes of risk their own column instead of lumping every problem together.
What's the difference between Achilles' Heel and Trojan Horse?
Achilles' Heel is a vulnerability the team already knows about but hasn't fixed — a single point of failure everyone works around. Trojan Horse is a risk the team didn't see coming because it arrived disguised as something good: a quick fix, a new dependency, or a process change that seemed like an improvement until it wasn't.
Isn't this just Strengths, Risks, Learnings with different names?
The columns rhyme, but the framing changes what people write. 'Risk' invites a generic list; 'Achilles' Heel' asks for the one thing that could actually take the team down, and 'Trojan Horse' specifically hunts for risk disguised as good news — a category most retros never surface on their own.
Is the Achilles' Heel template free?
Yes. Retromik is free — create a board with the Achilles' Heel template and share the link. Guests join without an account, and cards stay anonymous while people write.
Related templates
Elephant in the Room
Name the hard thing first — the one everyone sees but no one says.
ViewHero · Villain · Plot Twist · Cliffhanger
Run the sprint like a season finale: the hero, the villain, the twist nobody saw coming, and the cliffhanger you carry into next season.
ViewWind · Anchors · Rocks
A visual metaphor the whole team gets instantly: what propels us, what drags us, what could sink us.
ViewRun your next retro with Achilles' Heel · Trojan Horse · Shield
Create the board in under a minute, share the link, and your team joins anonymously — no accounts needed for participants.
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