Let's call it what it is.
Whoever decided that Sam should be allowed to walk out the door, rather than giving him a contract sufficient to persuade him to stay, has royally f*cked up. And plenty of people were pointing that out in the summer when it happened, so it's not just a case of saying that with hindsight. We've just had to loan Walker from Salford when we had a better and improving player already under our noses.