After an expensive transfer window last summer, Chelsea are not planning a new team structure this time. Instead, they want to put all their eggs in one basket by securing a blockbuster deal for one of the most productive strikes in Europe, Erling Haaland.You can see why Thomas Tuchel has identified Borussia Dortmund striker Haaland as his main target. They may have lifted the Champions League trophy but no player scored more than seven league goals in 2020/21, and it was Jorginho for goodness sake.If the Blues make the…