What are the stages of a corporations life cycle?

For this essay, you may use the same company you have previously used, or select a different company for your analysis on how a company has implemented a corporate strategy or a future policy rollout. Consider a company that has done a strategy development, and is in the implementation phase, or has been through the implementation phase.

In your essay, address the following questions.

What are the stages of a corporations life cycle? How can a corporations life cycle be extended?
What is strategy implementation? What questions must strategy makers consider to begin the implementation process?
What are some of the approaches a company can take to identify and prepare its people for important positions?
It is important to assess the strategy-culture compatibility when implementing a new strategy. Do you think that culture follows strategy, or does strategy follow culture? In your response, use the company to illustrate your points. Justify your answer.
What is Six Sigma? Why would a company want to implement it?