The most successful club in English football with, among other honours: 3 European Cup / Champions League titles, 1 Europa League, 20 Premiership titles and 12 F.A. Cup wins. The majority of this success has come under two managers: Sir Matt Busby and Sir Alex Ferguson. Since Sir Alex's retirement in 2013 things have been rather a mixed bag, Louis Van Gaal won the F.A. Cup before being relieved of his duties, and Jose Mourinho won the club's sole Europa League title in his first season before ge