Republish new version of course over team-mate's older version

I was wondering if anyone knew how to publish a new version of a course over the top of a team-mate's course? I believe that each published course in Review 360 is locked to a single license. But it seems to me that if the license is part of a team, they should be able to do this.

The reason  for this is simple enough. Original team members might not do the maintenance edits that crop up over the course of months or years. They might  even have left the company. And course reviewers would like the ability to refer to their original notes. 

We could transplant the reference comments to the new version. That seems slightly burdensome. Also, if the original creator is still around we could ask them to do the re-publishing, but that also is kind of a time-waster, especially since we could just re-publish and be done with it. [Perhaps this is what we will have to do.]