How to investigate code regression using RTC

Hello to forum members,
This is a scenario I face during my work from time to time: a regression in our product is recognized by the QA team, they are able to mark the last known good build, so I can compare in RTC the two builds (the one where the regression was reported and the last known good build) and retrieve a list of submitted change-sets. I am wondering whether RTC has work-flow to offer for the next steps. Currently, what I do is to track the suspicious change-sets, look at their diffs, copy the previous state of the file, compile and check whether the regression disappears.

Thanks,
Gidi