A decision tree is a tool that seeks to objectify and process-ize decisions.
If this, then that. On down the tree.
It can really help in a group scenario. The decision tree presents a clear and organized way to visualize and socialize a decision-making process. “See here? This is how we do it. We all agreed to it.”
You can appeal to the tree to supplant emotions, curtail strong personalities, and create collective agreement where there is little personal agreement. In fact, arguing about the decision tree rather than the decision might be the best strategy for the group. It can be an effective means to equitize the strong and subtle personalities.
But sometimes the decision tree becomes a crutch. A reason not to be courageous. A reason to take the easy road.
Some situations call for courage rather than previously-agreed upon process.
Sometimes, you need to change the decision tree.
