Depending on what your interview is for, you can almost get away with leaving both cameras in a static shot. If you’ve got one that’s a close-up, and one that’s more like a medium shot, it’ll look pretty good from a TV/ENG standpoint.
You can zoom in and out for other shots if you so desire, and there are some shots that do look really neat if used sparingly, like a super wide shot, or a super tight shot, and these shots are so seldom used, you wouldn’t want to have cameras set up exclusively for them. If you want to take these shots, leave one camera (Your profile/closeup camera) static, so you can switch to that camera while you’re zooming to set up your next shot.
