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Many fans who are either new to La Liga or only follow the big two of Barcelona and Real Madrid might see Caparros ahead of someone like Jose Mourinho and scratch their heads.
If you are one of those people, just ask a long-time Athletic Bilbao fan how great the Spaniard is.
Ask a Sevilla fan about the manager who was responsible for the greatest period of the team's modern history.
Ask Mallorca about the man who took them from the relegation zone to being a Europa League contender.
At Sevilla, Caparros helped build arguably the greatest team in the club's history.
Just take a look at some of the names the 56-year-old turned into class players, some world-beaters: Dani Alves, Sergio Ramos, Jesus Navas, Julio Baptista, Jose Antonio Reyes, Renato and Barcelona's Adriano.
If these players were all reunited now, many of them in their prime, they could challenge for a league title.
Caparros does not always get credit for Sevilla's European and domestic success of the mid-2000s because he was not the coach then.
But make no mistake, nearly all of that unprecedented success—and the trophies the club now has in its cabinet—are a result of the seeds sown by the brilliant Andalusian coach.
After moving to Basque Country, Caparros took over a club that had very little direction and almost no footballing philosophy.
The Spaniard slowly began building a team capable of battling the top teams in Spain after rebuilding almost the entire team from scratch—a talent he has proven to be habitual since then.
In his first season with the club, the Spanish coach took Los Leones to their first Copa del Rey final in two-and-a-half decades while also guaranteeing safety for the first time in years.
As with Sevilla, Caparros nurtured many of Bilbao's great players from the last 10 years, many of whom are now considered some of the best players in the league.
Guys like Fernando Llorente, Javi Martinez, Iker Muniain, Markel Susaeta, Oscar de Marcos and Jon Aurtenetxe are where they are today because of the trust and coaching given by the great coach.
Fast-forward to today and we might be witnessing the crowning achievement in Joaquin Caparros' incredible career.
When he moved to Mallorca in 2011, he took over a club that was just one point away from relegation the year before. In just one season, he put the team one win away from playing in the Europa League.
For those who may think it was just down to luck, look at what he has already done this season.
After losing every key player in his squad last summer—namely Gonzalo "Chori" Castro, Sergio Tejera, Jose Manuel "Chico" Flores, Fernando Tissone, Pau Cendros, Marti Crespi and captain Ivan Ramis—Caparros now has Mallorca in the thick of the Europa League hunt.
It is not at all shocking that the club is desperate to sign him to a long-term contract.
Many people will look at someone like Jose Mourinho and rightly praise him for all the success he has had.
But when you look at the squads Mourinho has had to work with and the money at his disposal over his last three postings, we have to wonder if a master like Joaquin Caparros could have found similar success.
We can also look at the other side of the coin. If Mourinho or Guardiola were given the teams that Caparros had been given, teams that had no right even getting above mid-table, can we honestly say they could have had such a drastic impact at all of these clubs?