Our taxonomy of demand-side and supply-side gaps produces six possible situations, depicted in figure 5.6, only one of which is a no-gap condition. The figure illustrates several points. First, it is important to identify the source of the gap. If the gap arises from the cost side but the right amount of service outputs are being produced, for example, then it is important not to reduce or increase service output provision while reducing cost. Alternatively, if a demand-side gap with too high a level of a particular service output produced and a supply-side gap (flows are performed inefficiently) are both present, then reducing the level of service outputs offered without also increasing efficiency will not fully close the gap. Even worse, if a demand-side gap with too low a level of service outputs provided is present with a high-cost supply-side gap, the temptation may be to cut service provision in an attempt to reduce channel costs. The result would be doubly disastrous: not only would service levels suffer even more, but efficiency on a flow-by-flow basis would not improve. Thus, if the source of the gap is not properly identified, the solution may be worse than the original problem.