The overarching strategy of leading change should be to clearly and honestly communicate the business consequences of maintaining the status quo. If you are losing business to a competitor with shorter lead times, or are unable to accept business because you have too little capacity, share that knowledge.
A crisis — current or perceived –– can produce real change. When a crisis occurs the actions that are taken depend on the ideas that are available. If the ideas are stale or not well thought through, often as a result of not adapting to changing production realities, the company may continue to slide. If the ideas are fresh and relevant the company can move in the right direction. If the ideas include solutions to the people equation the entire vision will be embraced.