Joining Multiple Analysis

Summary

Is there a way to join two analysis to report only differences between the analysis

Content

I need to report on eligible employees who are missing a retirement match element.  The only way within analysis I could think of doing this is to create one set of all employees who meet the criteria to have the match element (analysis A), and another that would have those with the match element (analysis b), and then only have employees who are on analysis A and not in Analysis B show on another analysis.

Has anyone ever done something similar as I am not sure if this is even possible?