Concerns and refinement but Chelsea are much-improved

[Getty Images]Xabi Alonso left his last news conference in a subdued mood and wanting to conduct a "deeper analysis".That was despite Chelsea producing an impressive comeback to beat Leeds United 6-3 at Stamford Bridge in the Carabao Cup on Wednesday.It came after Alonso made four changes at half-time, introducing Cole Palmer, who scored twice, and Morgan Rogers, who provided four assists.There are now questions over whether the Blues' fringe players are close to the level of the club's establis