#6 Harry Redknapp (Portsmouth)
Harry Redknapp was appointed as Portsmouth’s Director of Football in 2001 and subsequently their manager after Graham Rix’s disastrous spell. He saved the relegation-threatened club and masterminded their promotion to the Premier League in the very next year. However, disagreements with club owner Milan Mandaric resulted in him leaving the club.
Redknapp did the unthinkable as he joined Portsmouth’s rivals Southampton the next year. But a disastrous season saw him leave the Saints and return to his old employers, helping them out in their relegation troubles.
Redknapp then led Pompey spectacularly to their highest finish in almost half a decade and later, won the club their first FA Cup in 69 years.