Some things change and some things don't. When it's unexpected, it can be disorienting at best, traumatic at worst. Be ready for it, adjust to it, and grow from it. When things don't change but should, environments stagnate and decline. Avoid the status quo, cope with unease, unleash motivation or excellence, and grow understanding for long term improvement.
Event driven. Short-term correction
Identity driven. Long-term pervasive change.