3) Harry Redknapp

England fans were urging the FA to appoint Harry Redknapp before Roy Hodgson’s was unveiled as England manager in 2012. In hindsight, they are probably glad he was never appointed.
The Englishman has never had a win percentage over 50% with a league club, even during his time at Spurs which, still to this day, was hailed by many as an unbelievable time in his managerial career.
Most recently, Redknapp took over at Birmingham. He initially helped them survive at the end of last season. However, after signing 14 players in the summer, he suffered six successive defeats, and was sacked by the Championship club, in what will most likely be his final managerial job.
Birmingham was the second club where he has had more defeats than wins during his managerial spells at them clubs, the other being QPR, who he ran into the ground financially and left when the going got tough.
There are still people out there though, who think he has been a good manager over a long career. He is one of the most overhyped managers in history, especially in England, even with his reputation falling quite dramatically in the last few years.