After use Porter's Value Chain Analysis coupled with the VRIO framework analysis to determine the extent to which DELTA's leadership is a potential source of a strategic competitive advantage. Be sure to justify your position.  

Hint:  this process will be very useful in your strategic analysis project.  The outcome might also help you, depending on what your idea (Strategic Recommendation) for DELTA is.  

Note:  Information on DELTA's leadership is not all public knowledge.  You will need to  make some inferences based on what you as an outsider can learn through your research about DELTA's leadership.