Santiago Solari has been thrust straight into the deep end at Real Madrid.
The 42-year-old, who spent five years at the club as a player, has been promoted from the Madrid B team to take the reigns of the senior side following the sacking of Julen Lopetegui on Monday.
But who is the former Real midfielder, and how long will he remain in charge?
Who is Santiago Solari?
Solari was born in Argentina in 1976, and began his career with Richard Stockton College in the United States.
A return to Argentina saw him take in spells at Newell's Old Boys and Renato Cesarini, but his professional career did not begin until 1996, at River Plate.
Three years later, a move to Atletico Madrid followed, before his dream move to Real.
Spells at Inter, San Lorenzo, Atlante and Penarol followed, with Solari earning a total of 11 caps for Argentina; he eventually returned to Real in 2013, taking charge of the youth team.
Before the 2016-17 season, he was given the reigns to the Real Madrid Castilla - the Blanco's B team that plays in the third tier of Spanish football - and will now take charge of the senior side as they look to hire a permanent replacement for Lopetegui.
How long will Solari be in charge of Real Madrid?
Real have a total of two weeks to appoint a new permanent coach, whomever that may be.
The Spanish Football Federation's (RFEF) rules state that Real Madrid have a fortnight to permanently hire a new coach, or face disciplinary proceedings.
Article 160 in RFEF's General Regulations document reads:
1. If a coaching vacancy occurs after the competition (La Liga) has started, the club will be obliged to find a new coach who is licensed for the category within a maximum time frame of two weeks.
It is worth noting that Solari possesses such a licence.
2. Failure to carry out the duties referred to in the previous paragraph will lead to the carrying out of corresponding disciplinary measures by the federation.
Thus, provided he is not appointed permanent manager, Solari's reign is set to last a maximum of four games, starting with Wednesday's Copa del Rey clash against Melilla.
Their final fixture before November's international break is back in La Liga against Celta Vigo, by which time Solari's immediate future should be a lot clearer.
Who will be Real Madrid's next permanent manager?
Real Madrid are currently in negotiations with former Chelsea manager Antonio Conte, but his potential appointment is a complicated one.
The Italian is understood to be interested in taking the reigns at Santiago Bernabeu, but protracted negotiations between Madrid and Conte's former side, Chelsea, have the Blancos scrambling ahead of Wednesday's Copa del Rey match against Melilla.
Though Conte is keen to take charge of Madrid, the Italian's compensation package with Chelsea still must be thrashed out after the Blues fired the Italian following the 2017-18 season.
In order to sign with Madrid, Goal understands Chelsea want Conte to forego a €10 million (£9m/$11m) payment, which is complicating the negotiations between all three parties.
Conte has won Serie A three times, as well as the Premier League, but it remains to be seen if the Italian will eventually be appointed in Madrid.
If not Conte, then Solari could be placed in permanent charge until the end of the season, though that is far from the ideal scenario.
Other external candidates include Tottenham boss Mauricio Pochettino, whom the Madrid hierarchy have long been a fan of, though his signing of a new five-year contract in north London during pre-season complicates matters somewhat.
Arsene Wenger remains out of work having left Arsenal at the end of the 2017-18 campaign while Joachim Low - who Madrid reportedly spoke to following Zinedine Zidane's resignation in May - is struggling with Germany and may be glad of the change of scenery.
Roberto Martinez has also been linked following his successful World Cup showing in charge of Belgium while there are even suggestions Jose Mourinho could return to the hotseat as he continues to struggle for consistency at Manchester United.