Repeating the class is not a guarantee that you will pass. There may have been several reasons you failed, the least being what you did not do on your paper. It seems foolish to use a failed paper for this class, especially when statistics show that the great majority of those students who use a paper that failed the first time, fail this class the second time. Plagiarism is reason to fail this class. It is not fair to tell students that mediocre work is good, regardless of effort, because such work is not rewarded in their professions.
Effort is rewarded in a certain percentage of the grade.
Therefore, fulfilling these expectations makes a student average, not exceptional or above average. Every time this class is taught several students meet these criteria, so they are not unrealistic. This includes effective paraphrase and quote use, with all source uses effectively introduced and commented on in the paragraphs in which they are used. Of course, they must also be effectively documented.