You are right about being being down to the bare bones and everything you say is valid but with two crucial home games on the bounce coming up, I'd prefer to see CH pursue the points with a 4 4 2 formation. Anyway, we'll see how it pans out.
I think 4-5-1 is too negative for home. It hardly shows the intention to play attacking football. I could be talking out of my a**e but that's just how I see it.