I think you're being very harsh.
Injuries happen, it was unfortunate that we had so many all at once, but those lads didn't come with an injury history (save for Connolly).
Traore, Tufan, Darlow, Seri, Christie and Oscar all contributed well last season. Vaughan also looked great and was like having a new signing, while Simons we will have to see but I like what I've seen from him when he has played. Tetteh did ok but his injury problems mean we're doing well to shift him. Figs was a write off, but he had just helped Forest get promoted, he's a classic example of a player who came in full of confidence, made a few mistakes and was never the same. Woods I think was just brought in as cover, I don't think he was every seriously going to be first team material. Ally seems to have gone through a similar problem with injury, he doesn't quite look the same player. The difference there of course is that he has age on his side.
Some transfers work out, some don't. There's no guarantee that the goal Liam Delap scored on Saturday won't be his last for us and he's the next Danny Graham. Sinik was a big signing, he's going to get a fresh chance under Rosenior to show what he can do and if it doesn't work out, he'll be gone, but he came with a very good reputation and I think he'll do well. Vale also came with a big rep and was total crap.
We paid £4m for Tufan, I'd say over the course of last season we got our moneys worth from him. We paid nothing for Oscar, I'd say his goals puts him in credit. Traore I need to see more of but I think he's got obvious quality and he adjusted to the Championship very quickly.