Why do Chelsea look short in midfield?

[Getty Images]The primary issue is the absence of midfielder Moises Caicedo, who is out with an unspecified injury for an unknown period after breaking down just 11 minutes into a substitute appearance against Brighton last week.It has left Xabi Alonso in almost uncharted territory for a Chelsea boss. Aside from suspensions, Caicedo had missed only two matches during the previous three seasons, through a knock and illness.Asked about the Ecuador international, Alonso said: "It is about assessing