In 19-year-old midfielder Thorne they have a player of immense promise after being pitched straight in following his impressive loan spell at Peterborough.
"George only came back from Peterborough yesterday and though I had other options, I decided to throw him in," said Baggies boss Clarke.
"He was frustrated because he couldn't get in our team, so we let him go out to get match experience and play competitive games in the Championship.
"We got some great reports on him. I knew he could go in there and play and he did very well."