That’s the theory—but it often falls flat. While all team members “agree” to support the consensus decision, the decision may not, in fact, be the optimal decision for the team or the business.

Advantages of Consensus Decision-Making

Group Agrees To Support the Decision

Reaching a conclusion that everyone on the team supports is a positive, often effective, team strategy. With 100% agreement, you can move forward with confidence, and you don’t have to worry about another employee working to undermine your efforts.

Involved Employees See Benefits

To get everyone to agree, it generally (but not always) means that the decision made will benefit every group within the team or organization. You’re not sacrificing good HR, for example, to make finance happy, or vice versa.

You Present a Unified Front

Leadership teams often have to make decisions that employees don’t like or support. You’ll find it’s far easier to convince employees who may not like the decision when they receive a consistent message from their managers and senior leaders.

Collaborative Spirit of the Team

When you come to a group consensus, your climate for employees feels cooperative. Everyone’s ideas were heard, and you came to a decision that all team members could support. This interactive process can bring about feelings of goodwill.

Disadvantages of Consensus Decision-Making

Agreeing to Bad Decisions

Consensus decision-making does not always lead to good decisions, especially if the group is relatively homogenous. For example, in 2018, a group of 14 Idaho Middleton School District elementary teachers dressed in culturally insensitive Halloween costumes after attending a team-building event. The costumes were designed and created during the team-building event. As can be imagined, the event upset many parents and children of the district. The implicated teachers were placed on paid administrative leave and the school’s principal was replaced.

Groupthink

The above Halloween disaster is an example of groupthink—the desire to reach a consensus can cause people to ignore indications that what is proposed is a bad idea. The team pushes aside any data that may derail the consensus decision. Research psychologist and author Irving Janis first described the theory of groupthink. He offers the eight steps involved in creating the systematic errors of groupthink.

Compromise Solutions

Compromise can help push a decision through, but it’s not always the best possible outcome for any one person or group. Consensus decision-making can cause a group to agree to the lowest common denominator—a solution or decision that satisfies the team members’ need to agree—but it may not be optimal for the business. Additionally, in business, not every factor, department, person, or decision in an organization is equally important. For instance, the HR department may push for no layoffs. This sounds great and is what you’d expect from your HR team. But, by not cutting labor costs, you have to cut costs in another area. The consensus decision is to cut manufacturing costs and not do employee layoffs, but the result is a shoddy product that eventually causes the company to lose market share. Ultimately, all the employees are worse off. Perhaps the disaster could have been avoided by not treating every department or concern as of equal worth.

Business Is Hierarchical

If your goal is consensus decision-making, this power differential allows the powerful to heavily influence the less powerful to reach “consensus.” Then, if the decision made is a failure, the powerful can point out that “everyone agreed to this solution.” In other words, the aura of consensus decision-making allows the powerful to avoid responsibility.