Why Good Decisions Fail Without Buy-in

Decisions die in silence

The most common failure mode for a good decision is not opposition. It is silence.

Why does a good decision made in a leadership team sometimes never happen? Why would it disappear when no argument was made?

Often, this points to a buy-in problem, but not in the usual sense. The people in the room agreed. The problem is what happens after the room. A decision of any consequence has to travel: down through the teams who will execute it, laterally across the functions whose work it touches and upward to the leaders whose support or resources it depends on. That travel does not happen by itself. Someone has to push the idea, talk it up across multiple conversations, reframe it as it meets different audiences and even defend it where it gets challenged. Without that work, a decision and the work behind it can become invisible.

The Explorer-Promoter role

The TMS Team Management Profile (TMP) names this work directly. The TMP maps eight role preferences, each capturing a distinct contribution that high-performing teams need. One of those roles, the Explorer-Promoter, is the role that takes ideas out of the room and into the system. Explorer-Promoters are typically outgoing, energetic, persuasive, comfortable in networks and with championing a concept publicly and repeatedly. They are the people who will not let an idea quietly disappear.

Every consequential decision needs an Explorer-Promoter attached to it, or at the very least someone willing to take on the promoting work required.

Leadership, extraversion and idea champions

TMP norm data offers an important nuance here. Leaders show a stronger preference for Extraversion on the Relationships measure than the broader workforce (TMS Standardisation Norms, 2023 and 2025). This pattern is consistent with longstanding organisational psychology research on personality and leadership emergence and with more recent work on how voice and championing operate in modern organisations [1].

Extraversion is one of the conditions for the Explorer-Promoter role but it is not the role itself. Many extraverted leaders are not Explorer-Promoters at all. They are Thruster-Organisers or Assessor-Developers who happen to be outgoing. They are perfectly comfortable speaking, but their natural energy is directed at driving execution or refining analysis, not at carrying an idea outward across the network.

The implication is that a leadership team can be confidently extraverted with strong stakeholder skills and still produce decisions that die in silence. Why? Because no one in the team is naturally drawn to championing ideas and building enthusiasm about them in the corridors, in one-on-ones and all the upward conversations where commitment is built.

If no one in the surrounding system has either the role preference or the developed capability to carry the decision through the conversations that determine its survival, the decision will be silently moved along.

Ideas have to be embraced

The principle the TMP makes operational is this, ideas have to be embraced, discussed and pushed with enthusiasm. It is the mechanism by which the decision travels. Memos, slide decks, various documents convey momentum more poorly than conversation.

McKinsey’s continuing research on transformation success has reached the same finding from a different angle. The difference between transformations that take hold and those that stall is rarely the quality of the strategy. It is the depth and persistence of internal championing across informal networks: down to the teams who must execute, laterally to the functions whose support is required and upward to the leaders whose backing must be renewed [2]. The transformations that succeed are the ones where someone, every day, is somewhere in the system talking about the idea.

The leader is not always the promoter

A common trap once leaders understand the importance of the Explorer-Promoter role is to assume they need to fill it personally. That assumption might force them into unconvincing championing if their preference sits elsewhere and might concentrate work in the wrong place. Not every leader needs to be an Explorer-Promoter.

The promotion of ideas can always go to someone in the wider team who has the natural energy and preference to take the idea outward. Good delegation is an important skill.

If no one is a team is inclined towards promoting work, a leader, or another member of the team, might need to grow that capability over time. Stretching to develop the skill is a great idea, TMS theory pushed towards working 2/3 into your preference to stay motivated and 1/3 into another area to grow. The main idea is to keep a balance so as not to be exhausted by less preferred tasks.

When the team has no strong Explorer-Promoter preference at all, it becomes important to include the promotion work into the process so that it doesn’t get forgotten. A good question to ask is “who will carry this?”. The carrying of the idea will need to be more deliberate and slower-paced than it would be in a team with natural energy for promoting work. The TMP is useful here because it makes the development task specific.

The capability worth building

Decisions do not fail at buy-in because the room was unconvinced. They fail because the room was the only place the decision was ever discussed. The capability worth building is the recognition that an idea is only as durable as the energy invested in carrying it into the network around it.

The Explorer-Promoter role is the structural answer.

The TMP can be the practical instrument to recognise this and break the task down with the support of the Work Wheel.

Find out more about TMP

The Team Management Profile is the foundational TMS instrument and the most useful starting point for the work described here. It maps the role preferences across a leadership team, surfaces where the Explorer-Promoter role is over- or under-represented and gives leaders a shared language for the work of carrying decisions through the organisation. Talk to TMS about running a TMP workshop across your leadership team or working with a certified TMS practitioner. It is the obvious starting point for building the capability this article describes.

References

[1] Grant, A. (2023). Hidden Potential: The Science of Achieving Greater Things. Viking, October 2023. Drawing on Grant’s broader body of work on personality, voice and championing in modern organisations.

[2] McKinsey & Company. Transformation research stream on the role of informal networks and internal championing in change success (ongoing; recent insights 2023-2024). https://www.mckinsey.com/capabilities/transformation/our-insights

TMS Standardisation Norms (2023, with 2025 update). Team Management Systems.

Margerison, C. and McCann, D. (1990, revised editions). The Team Management Profile and the Margerison-McCann Team Management Wheel. Team Management Systems.