I think you’d enjoy tennis more if you found some partners who think about this stuff as much as you do.I wind up saying a lot of things I feel I shouldn't have to say because -- and I don't know why -- folks just don't react to things.
Take coming in, for example. I now have a habit of saying quietly, "I'm in" when I transition to net. Should this be necessary? Shouldn't my partner feel the ground shake, hear my snorting and panting? Nope. A lob will go unplayed and my partner, who is used to years of one-up-one-back, will say, "Oh. I thought you were back there and would get that."
Another one I say often is, "Come back with me!" That's for situations where a lob is going over my partner and I am going to be challenged to reach it and hit a decent shot, and my partner stays tight to the net.
Anyway, it does help to say things like switch. At least when the ball goes unplayed as we are in an I-formation on the other side of the court, my partner will at least know her mistake without my having to, you know, rub her nose in it.