It’s almost criminal and it happens far too often. A lot of people invest a lot of time and effort to improve a performance measure. Change gets implemented, the needle gets moved … then attention shifts elsewhere and performance reverts back to how it was before.
Institute, don’t just implement. Implementing means getting it done … once. Instituting means making it permanent.
To institute what you’ve implemented: 1) document the changes as processes or policies, 2) ensure ongoing communications and training so the changed processes or policies remain top-of-mind, 3) establish mechanisms to monitor ongoing performance and to trigger alarms if performance falls below an acceptable standard, and 4) identify who is ultimately responsible for the performance measure and who is responsible for holding that person accountable.
Don’t squander those hard-won gains. Institute.