Or perhaps we could promote him and give him genuine, full-throated support?
Koeman's issue right now is team selection, an issue magnified tremendously by that he doesn't seem to understand how poor his selection is and that he is starting to trot out the "we're not expected to beat United/Chelsea/etc." card. It is also becoming clear that his transfer strategy isn't really one as such.
I want our next manager to pick a team with greater thought to how the individuals might play together. I think Unsworth would be in the best position to make those calls by virtue of his familiarity with the first team and with the U-23s. I also think that mixing things up would make the ultimate roles for Rooney, Sigurdsson, Klaasen, etc. easier to ascertain.