Spain defender Dani Carvajal spoke out on Thursday in favour of his side's interim coach Fernando Hierro's abilities whilst admitting the 2010 world champions have failed to meet expectations at the World Cup so far.
Hierro, a last-minute replacement after Julen Lopetegui was sacked, had his capacity for coaching called into question by former Real Madrid manager Bernd Schuster after the national team scraped their way to the top of Group B with five points.
Their reward for winning the group is a last 16 clash with tournament hosts Russia on Sunday.
"The first problem Spain have is that Hierro is not a coach, he doesn't have the experience for this level, being a player is not the same as being a coach," Schuster told radio station Onda Cero on Wednesday. "He came in very late and it's not his fault but it's very difficult for him to take decisions. The team had been built by another person and he's not making the right changes, he doesn't have a plan, he doesn't know how to react."
Carvajal hit back at Schuster on Thursday, saying: "I think he is more than capable, so I have to disagree with Schuster's words. In the end we are the ones who see him every day and we believe he is qualified to lead the team. He is a great coach and we'll stand by him until death."
Carvajal said no one was been happy with their displays so far but also claimed the overall level of football in the World Cup has not been high.