Maresca's structural issues at ChelseaThe reigning Club World Cup champions' coach is out of a job. Sources have told ESPN that over time, Maresca began to grow frustrated with the level of input from outside his personal support staff. play 1:51 Laurens: Enzo Maresca played poker with Chelsea board and loss Gab Marcotti and Julien Laurens react to Enzo Maresca and Chelsea parting ways. Sources have told ESPN that there were several times where Maresca disregarded the recommendations made to him by the club's medical department. Worrying trends in performancesThere is a reason why this appears last on the list of reasons Maresca left Chelsea.