In principle, groups make their best decisions when no single person knows what’s best for the group. “No one in this room is smarter than all of us,” is a popular phrase among some groups.
When I go into a meeting already sure of what the outcome should be, I am apt to focus on getting my way rather than on what’s best for the group as a whole. Knowing in advance how things should be closes off the potential of things being better than I can imagine.
Practical Tip: At the start of every meeting, say to yourself: “I don’t know what’s best for the group.” Begin with an open mind and remain open-minded as long as possible. Maximize the value of your contributions by giving up ownership of them. Release the need to take credit and the need to be a victim. Simply play your right-sized part as best you can and watch the group’s best unfold.