It’s common for mapping team members to make comments such as “I can’t believe we do it this way,” and “Why don’t we . . . ?” As improvement ideas surface during the walks, they should be captured, but the facilitator should discourage the team members from discussing the merits of the ideas right then or getting drawn too deeply into future state discussions. Instead, they should create an “idea list” that they can refer to during the future state design phase.
