I'm finding this to be incredibly buggy and difficult. I've tried forcing the target to attack enemies that have the Player as their combat target. For some reason that doesn't work, even though I can do it via the console. I've tried modding their disposition to the Player, but I've found that this will auto reset sometimes to a low number, especially if the Player is fighting a member of their faction.
I can successfully cast it on a solitary creature (either fighting the Player or not), and give it a follow package. But as soon as I need it to defend the Player, it falls apart on me.
Anyone ever tried this?