need to do a research paper

hi

i need to asnwer these question  from this article

http://static.googleusercontent.com/media/research.google.com/en//archive/spanner-osdi2012.pdf

the paper should be as short essay and single space

the question will be:

What is a good argument against the case made by the authors?

·        How can the research results be improved?

·         Can the research results be applied to another context?

·         What are the open problems raised by this work?

·         Bottom-line: Can we do better than the authors?