4) Jose Antonio Camacho – Real Madrid – 23 days
Hiring a club legend and a fan favourite as manager is always a risky strategy, but that’s exactly what Real Madrid did with former left-back Jose Antonio Camacho.
Having made 414 appearances for the club as a player, his managerial career didn’t last anywhere near that long. He was forced to resign after just 23 days due to disagreements with the club’s board.