If this is not the case, you may need to encourage your student to change to the other side of the argument. Unlike the mentor texts we read on day 1, this sample would be something teacher-created or an excellent student model from a previous year to fit the parameters of the assignment.
When writing this type of essay, your students should not only show why they are right but also why the opposition is wrong. Yes, I was certified to teach the full spectrum of English language arts—literature, grammar and usage, speech, drama, and so on—but my absolute favorite, the thing I loved doing the most, was teaching students how to write.
Without this type of support, the argument will not be convincing. This ultimately looks a little bit like a debate, as students from either side tend to defend their position to those on the other side.
This differs from other types of essays where the goal is to present information or show how something is similar to or different from something else. A strong refutation will address the argument and prove it is not logical, there is a better answer, or it is not true.
Meanwhile, students who have their plans in order will be allowed to move on to the next step. With the most important parts of the essay finished, your students simply need to add a conclusion to finish strong.