KSF factors for Loblaws with detailed explanation of why they are?

Outline for question: Key Success Factors (KSFs)- what does it take for companies to succeed in this industry? What companies can do/have done to gain a competitive advantage? What does it take to sustain in this industry? You may also identify, compare and contrast key strategies pursued by major players in the industry. This discussion may also include your insights on the type of strategy that you think seems to be most successful in the industry, and why.