Which system is best for the situation?
There are four major decision making systems (techniques) to chose from. Selecting the right one makes a big difference in the end result.
Here are some criteria:
Priority / Alignment with strategy / mission
Timing / Urgency
Personalities / Politics
Dependencies on team members for execution
VUCA (vulnerability uncertainty complexity ambiguity) of the problem
Availability of stakeholders and / or potential decision team members