For example, a key challenge may be that water pollution by pesticides is causing declines in endangered amphibian populations and driving high drinking water treatment costs. Previous research may have identified a pesticide contamination threshold below which the target amphibian species are no longer affected (say that threshold is 25 ppt of pesticides). Separately, water treatment costs usually follow a step function, where treatment costs do not decline linearly with contaminant concentrations, but rather are dramatically reduced below a concentration threshold (say the treatment cost threshold is 50 ppt). A minimum goal statement for this key challenge could be to reduce pesticide concentrations to 25ppt or below in key amphibian breeding areas and to 50ppt at drinking water withdrawal points. This minimum goal statement indicates that strategies that do not lower pesticide concentrations to at least these levels in these locations will not create sustainable systemic changes in the key challenge. Strategy mapping may reveal that some strategies will reduce pesticide concentrations even further, information that will inform the creation of the final objective statement in later steps. But any strategy that is not projected to at least achieve the minimum goal(s) will be deemed insufficient.