#2 Santiago Solari (2018) FIFA Club World Cup (One month nine days)
Real Madrid found themselves in dire straits at the start of the 2018/2019 season following the departures of two iconic figures in Zinedine Zidane and Cristiano Ronaldo.
The club's record goalscorer largely went unreplaced, while Perez turned to former Spain manager Julen Lopetegui who was appointed in acrimonious circumstances just days before the start of the World Cup.
Following some disastrous results including a five-game scoreless run, Perez finally had enough of Lopetegui and gave him the sack letter just 14 matches into his tenure and turned to former youth coach Santiago Solari to take the reins on a temporal basis.
The 42-year-old started impressively enough, winning his first four matches in all competitions and helping to bring out the best in youngsters which was enough to hand him the job on a permanent basis.
The Argentine has hit the ground running and even though there are still many issues to fix, he has largely helped calm the stormy waters which he met upon his arrival.
Solari's triumph in the FIFA Club World Cup over Al Ain was his first triumph as a manager and came just a little over a month into his permanent appointment and Madridistas would hope it would be the first of many to come.