Football: Top 15 worst signings of Jose Mourinho (With Pictures)

10. Tiago 

Tiago was not a complete bust for Mourinho. The midfielder did, after all, make 34 appearances for Chelsea during his single season with the club. There are, however, reasons why Tiago was a one-and-done signing. Mourinho realized, after one campaign, that he needed an upgrade at the position, and he found just that when he was able to acquire Michael Essien. Essien was, no disrespect meant, the better option for Chelsea and for Mourinho. With his playing time cut due to the arrival of Essien, Tiago departed Chelsea and signed with Lyon.