Chelsea have confirmed that Jose Mourinho has been appointed their new coach. According to the club site, Mourinho has signed a four-year contract.Ron Gourlay, Chelsea FC Chief Executive, said: “I am delighted to welcome Jose back to Chelsea. His continued success, drive and ambition made him the outstanding candidate.“It is our aim to keep the club moving forward to achieve greater success in the future and Jose is our number one choice as we believe he is the right manager to do just that.“He was and remains a hugely popular figure at the club and everyone here looks forward to working with him again.”Mourinho brings three coaching staff with him in Rui Faria, Silvino Louro and Jose Morais. Each carries the title of Assistant First Team Coach and will work alongside current first team staff Steve Holland, Christophe Lollichon and Chris Jones.