Starbucks' competitive advantages

What competitive advantages do you believe Starbucks seeks to establish? What are the main challenges the firm faces as it tries to maintain the advantage or advantages you identified?
Please research about Starbucks Inc. and identify three or four capabilities you believe Starbucks possesses. Please explain your opinion if any of these capabilities are considered as core competence and justify your reasoning.
Starbucks’ mission is “To inspire and nurture the human spirit—one person, one cup and one neighborhood at a time.” According to your research and (may be personal experience as well) what actions do you recommend the firm take to reach this mission?