No, you don't have the luxury to choose your desired writer, and we do have our reasons for this policy. We know the qualities of our writers, and this is the reason we think it would be better if we assign the writers and experts, keeping in mind their strengths and weaknesses. All the writers we have hired do have a Master's level or a Ph.D. level degree, so you don't have to worry about the quality of their work. It is 100% certain that the writer you will get will work according to your instructions and guidelines.