The rule of the 3 C’s

Organisational changes require physiological time, until they are effectively consolidated the working situation.
It takes perseverance, determination, resilience and... patience for the whole duration of the project.
Tangible successes are not always realized immediately.
Early failures should not become an excuse to quit early or cause the abandonment of initial intentions.

In particular, three elements are to be considered: communication, consistency, consequences (rule of the 3 C’s).