I think it's going to prove a roaring success, or an absolute disaster, there won't be any middle ground. On the plus side he has proven he can do well with a team in this division, and he (for some reason) managed to retain the support of the forest fans, but the downside is that he likes to get his own way, he doesn't get on with his chairman and he spends money like it's going out of fashion (and sulks when he doesn't get his own way.)
Al Hasawi has clearly done this to appease the fans, but I wonder if he knows what he's let himself in for? Sometimes strong willed people can work well together, but this all seems rather strange. Why didn't they approach Billy when they sacked SoD? Why appoint McCleish then get rid soon after? something fishy somewhere...