One team controls every input to a decision (the vendor shortlist, the feasibility analysis, the risk assessment) and withholds what would change the answer, such as its own ties to the favored vendor.
An example
The executive committee of a natural gas distributor was asked to approve a fifteen-million-dollar replacement of its billing and work-order systems. The in-house IT team had prepared everything the committee saw: the vendor shortlist, the feasibility analysis, and the integration risk assessment. The shortlist covered three vendors, described as the top of the market. The chief financial officer asked why a fourth vendor, used by two peer companies, was missing, and was told it had not met the minimum criteria, which were not in the pack. The recommended vendor won on every scoring line. Eight months into implementation, she learned from the vendor's own account manager that the chief information officer had worked with them for a decade at two previous employers and was close to their regional head. Nothing in the pack had been false, and nothing in it mentioned that history.
Why it works
Whoever controls the inputs shapes the answer before anyone argues. Accepting the prepared analysis is the easy path for the committee, since it looks complete and nobody else has the data. Other options look worse because the information that would favor them never arrives, and pursuing them is costly, because building an independent picture means duplicating work and implying distrust. Each omission is defensible on its own ("we covered the top three vendors"), which keeps the pattern durable. It needs plausible reasons for what was left out; one material omission caught in the open invites scrutiny of everything else. It works by keeping the argument from being well formed in the first place.
The thinking behind it
George A. Akerlof A gap in information between two sides, Akerlof showed in The Market for "Lemons": Quality Uncertainty and the Market Mechanism (1970), distorts the choices of the less-informed one, which cannot tell good from bad. A committee whose every input comes from one team is in that position: it cannot judge what was left out. A second, independent source of analysis narrows the gap, which is why it is the first structural defense.
Herbert A. Simon Administrative Behavior (1947) treats organizations as systems of decisions built on premises the organization supplies, such as goals, information, and procedures, and notes that whoever controls those premises influences the decisions. A team that prepares the shortlist, the analysis, and the risk assessment controls the premises, so much of the committee's choice is made before it meets. Asking who controls the inputs is asking who controls the premises.
Oliver E. Williamson Markets and Hierarchies: Analysis and Antitrust Implications (1975) defines opportunism as self-interest seeking with guile, which Williamson later described as including incomplete or distorted disclosure. An undisclosed tie between the people preparing the analysis and the favored vendor is that kind of disclosure. Conflict-of-interest declarations in every decision pack are the safeguard his framework treats organizations as existing to provide.
Warning signs
One person or team is the only source for data that several unrelated decisions depend on. Each gap in what you are shown has a ready explanation: we focused on the top three, we shared the relevant segments. Criteria used to screen options are mentioned and never provided. Questions about what was excluded get procedural answers. Relationships between the people preparing the analysis and the options under review go undisclosed.
How to defend yourself
Asking "what am I not being told?" rarely surfaces it. The defense is structural.
- Ask first who controls the inputs to the decision, and whether any other source exists.
- Get a second, independent source for the analysis that matters most: an outside adviser, another function, a peer company.
- Ask for the screening criteria and the excluded options, with the reason each was dropped.
- Require everyone preparing the analysis to disclose, in writing and before the decision, any relationship with the vendors or options under review.
When all the inputs come from one place, treat that as a finding in itself.
How a leader shuts it down
Put conflict-of-interest disclosure in every major decision pack. Fund an independent check of the key inputs for large decisions, and avoid letting one team own the shortlist, the analysis, and the risk assessment together. In any contested decision, ask who controls the inputs before you ask who is arguing for what.