He won't be starting against Liverpool, he's there to tell Pickford that if he drops one in the net against them he'll be replaced for the foreseeable future.
It's as good as we could get on loan and makes perfect sense. Hopefully he'll not be used as Pickford will up his game in response, it's exactly what he needs.
People not happy with the signing need to understand the very basic fact that we have prioritised other positions, and there wasn't any money left to replace Pickford with a top class alternative. So a signing like this is a good move to see us through to the summer.
No real downside to an experienced loaner like this, we have competition for the keeper role and it'll push one of them to be good enough for this season.