Slightly off topic, was on the 10:21 Man Picc-Edinburgh earlier. The guard had quite a few passengers with seat reservations that didn't exist.
It twigged after a couple of minutes thinking about it that this is the normal 802 diagram on a Saturday, running with a 397 today. Suppose that's an issue that probably hadn't been accounted for. The train was standing room only, so could certainly have done with the extra capacity. Even the onboard revenue protection staff just checked the rear couple of coaches and then couldn't get any further.