#4 Winning the Premier League with Chelsea
Jose Mourinho came back to Chelsea in the 2013-14 season to deliver some much-needed success to the club. In his first season, he tried to keep the team in the competition and also tried to figure out what pieces would be required fr a sustained challenge for the Premier League. That piece apparently was Cesc Fabregas.
After spending three highly successful years in Spain, Fabregas required a new challenge and Chelsea was a great place to get that. Fabregas was the best midfielder in the 2014-15 campaign. He and Matic formed a lethal partnership and Fabregas provided all the ammunition for Willian and Costa to pounce upon.
Fabregas had more assists than Ozil and Silva and that spoke of the qualities which made him a great player during his time at Arsenal. The season also showed his ability to evolve his game as he had transformed into a deep-lying playmaker rather than the all-action midfielder he was at Arsenal.