describe Wal-Mart: Solution-Oriented Decision Models

Select a real company (not a retailer). Identify 4 decisions that the company makes at different levels of the organization. Describe the policies, procedures and decision-making tools that might be used to make each of the four decisions. In each case, describe why the decision-making methodology would be appropriate to this specific company's strategy.
For ex, Wal-Mart makes decisions about:
a) where to locate new stores;
b) which additional businesses to include in its stores (travel agent, bank, optician, etc.);
c) specific products to discontinue selling;
d) who to hire (and fire);
e) how many cash registers to have open at any given time;
f) accepting a specific item for customer return (for ex, an article of clothing that appears to have been worn).

Who would make these decisions? What criteria would they use? How might the criteria have been established? Would they use any kind of quantitative analysis? If so, which specific quantitative methods might be appropriate? How much discretion would the decision-makers have? Who would review or evaluate their decisions?

The process must - at some point - identify some alternatives (no less than 2, and no more than 6) and a way of choosing just ONE of them.