CHELSEA may be in the process of being treated in the same way they have dealt with their long stream of managers in the Abramovich era. In other words, Maurizio Sarri has told the club he wants to leave – just one year into his contract. Sarri, of course, ended the season with Champions League qualification and a trophy – his first (and probably only) year at the club has been a success. The fact that he’s decided to return to Italy and join Juventus is a message akin to “up yours” to Chelsea. Can you blame him? There were rumours for months that Chelsea wanted this manager, desired that manager, and that one of their favourite sons, Frank Lampard, was heading back to…