I honestly don't think there's any doubt about his quality at this level, or at least there wasn't a year ago when he last played at it. He was basically a 7/10 for us as soon as he came in the door, with a 10/10 last few months. Maybe he saved his best performances for games against us, but my impression of his time at United and St Mirren is that he reverted to the mean a bit in terms of goals, but his all round game seemed as good as it was with us?
There's clearly questions about his attitude, but with him knowing he's OOC in a year I guess you just have to hope he plays ball. For all the accepted wisdom that he fell out with Goodwin, when there's no actual concrete story it wouldn't surprise me if it's less Watt being an arsehole and more United freezing him out because of the ridiculous wage he's on.