You might as well not have a naming convention then, since the project is going to be full of different conventions.
Oh, I skipped this. Lol. Obviously not. As a team, they can implement whatever convention change they want, every two weeks.
As manager, I expect them to update all active projects, in their entirety, to the new convention, each time.
And as I mentioned in my other comment, if their test coverage isn’t at a level that makes me confident in that kind of global change (70% tends to be plenty), then I reserve the right to table it - until they bring the test coverage up (on all impacted projects).
Yeah. Their own lawyers have the best chance, but there’s so many pages, combined, I wonder if even one of their lawyers has read everything