Coalition Formation, Information Asymmetry
The Side Channel Coalition
The Side Channel Coalition is a Coalition Formation and Information Asymmetry scenario. The core lesson: The decisions that matter most are often made in conversations you're not part of. You discover that three colleagues have a private Slack channel where they discuss projects, share opinions about team members, and pre-align on positions before team meetings. You're not in it. DecisionPlay maps the players, payoffs, and equilibrium dynamics that shape how this situation typically resolves.
The situation
You discover that three colleagues have a private Slack channel where they discuss projects, share opinions about team members, and pre-align on positions before team meetings. You're not in it. You're not sure why.
Background
Informal coalitions form in every organization. They're not inherently malicious, they're how humans coordinate in complex social environments. But they create information asymmetry: members know things non-members don't, and decisions are pre-negotiated before the 'official' discussion. The question isn't whether side channels exist. It's whether you understand which ones shape the decisions that affect you.
What this reveals
Shadow decision-making
Official meetings ratify decisions. Informal channels make them. This has been true in every organization since organizations existed, the technology changes (back-channels became Slack channels), the mechanism doesn't. The people who understand this are rarely the most formally powerful; they're the most informationally connected. Being excluded from a side channel is less about what people think of you and more about the organic way informal networks form around proximity and convenience.
How to counter it: Map your organization's real decision architecture. Where do choices actually get made before the meeting where they're announced? Who is present in those conversations? Build relationships in those spaces, not to manipulate outcomes, but because that's where the actual work of coordination happens. Then share information generously: the fastest way into any network is to make being connected to you valuable.
A question to sit with
In your organization, where does real decision-making happen, and are you in those conversations?
Frequently asked questions
- What game theory concept does The Side Channel Coalition illustrate?
- The Side Channel Coalition illustrates Coalition Formation, Information Asymmetry. The decisions that matter most are often made in conversations you're not part of.
- What is the situation in The Side Channel Coalition?
- You discover that three colleagues have a private Slack channel where they discuss projects, share opinions about team members, and pre-align on positions before team meetings. You're not in it. You're not sure why.
- What does The Side Channel Coalition reveal about how people decide?
- Shadow decision-making. Official meetings ratify decisions. Informal channels make them. This has been true in every organization since organizations existed, the technology changes (back-channels became Slack channels), the mechanism doesn't. The people who understand this are rarely the most formally powerful; they're the most informationally connected. Being excluded from a side channel is less about what people think of you and more about the organic way informal networks form around proximity and convenience.
- How do you avoid the trap in The Side Channel Coalition?
- Map your organization's real decision architecture. Where do choices actually get made before the meeting where they're announced? Who is present in those conversations? Build relationships in those spaces, not to manipulate outcomes, but because that's where the actual work of coordination happens. Then share information generously: the fastest way into any network is to make being connected to you valuable.
- What is the research behind The Side Channel Coalition?
- Informal coalitions form in every organization. They're not inherently malicious, they're how humans coordinate in complex social environments. But they create information asymmetry: members know things non-members don't, and decisions are pre-negotiated before the 'official' discussion.
- How long does The Side Channel Coalition take to play?
- About 8 min, at core difficulty, across 4 decision points. It runs in your browser with no account and no sign-in.
Keep exploring
More Workplace Warfare scenarios, or browse all scenarios. New to this? Start with how DecisionPlay works or the game theory glossary.
Topics: workplace, coalition-formation, information-asymmetry, office-politics, season-2