Thanks to the new rules changes (which I support, so I am not criticizing them), an intra-conference transfer would bring a wealth of intel on a recurring opponent. This is a new wrinkle that is now fair game.
I don't see many games this year (due to the wretched and greedy ACC Network that has told me that my 28 years as a fan is not worth access to games on TV, and it too incompetent to find a way to let me purchase the games a la carte without buying a second, unneeded new cable service), but I am assuming that all ACC teams know the drama this guy brings and will want to stay away.