There's lots of players that are better than Gordon. It's not hard. That's not to say he won't go on and be a truly excellent player of course, but right now he's very much a work in progress, which is fine. Clubs pay for potential.He looks decent. Given that he is an instant upgrade on Gordon, and seemingly cheaper, lets just hope that Chelsea, Spurs, Newcastle and the rest don't find out about him.
I'm sure lots of clubs have looked at Terrier too.