I don't know what the optimism is based on other than "it's Danny Welbeck" and an eye to his background. There's no realism at all it's just assumed that suddenly overnight he'll become a world beater. You can nullify criticism of any player in the world by randomly asserting he'll be top class next year. It's eerily similar to "next year is our year" sentiment often expressed at another place. I suspect if he isn't a world beater next season it won't matter as the claim will be he'll be a world beater the season after and if not the season after that. It's as if the player himself has no relevance to anything and it's a competition where the most optimistic prediction wins. If Welbeck is to become top class there's going to have to be an almost unprecedented acceleration in his development over just afew short weeks.