I've seen a lot of articles about this but they were kind of dated so I just want to make sure what I'm trying to accomplish is not possible.
When we create a team site, we create three groups (Owners, Members Visitors). The Owners group has full control and we place the trained owner in that group. However, it is then possible for that owner to go and add users to the site and grant them Full Control access. That means that those "owners" have not had the proper training.
Is there any way to gray that option out for full control owners? I don't want my site owners to have the ability to add users to the site at the full control level (other levels are fine of course).