Javier Aguirre has been named as new coach of Real Zaragoza.
Aguirre was presented by Zaragoza as the replacement for Jose Aurelio Gay, who was sacked following a poor start to the season.
Gay was given the boot with the club rooted to the bottom of the table after picking up just one win and seven points from their opening 11 league games.
Zaragoza were also knocked out of the Copa del Rey after losing on away goals to Segunda Division side Real Betis in the last 32.
Former Mexico coach Aguirre, who is taking charge of his third Spanish club having previously managed Osasuna and Atletico Madrid, admits Zaragoza are going through a tough period but is confident of better times ahead.
"I've spent seven seasons in Spain and Real Zaragoza are one of the big sides. It's an important step in my career. I'm very excited because it's a huge project," he said.
"They've had some difficult times recently and it's a challenge, but with the help of everyone we can save ourselves. As well as that, there is a long way to go in the season and there's time to recover.
"This squad has the quality to play football. That's the idea, that the team enjoys themselves, keeps possession and is competitive. With this squad it's possible to save ourselves.
"I want to give encouragement to the fans and the players, although I don't have a magic wand. We must all work hard and we all have to get involved. As well as that, La Romareda has to be a fortress. I need the help of the fans."