Benitez has come in for criticism this season for his tendency to rotate his squad as Liverpool - who face Manchester United at Old Trafford on Sunday - struggled in the middle of the campaign.
However, Carragher is now eyeing a place in the Champions League final in Moscow at the end of the season and believes he and his team-mates are benefiting after being rested by former Valencia manager Benitez.
"The first three years the manager has been here we have been to three finals so hopefully there will be another one this season in Moscow," Carragher told Sky Sports News.
"He gets a lot of criticism for it but you have to look at his record, not just here at Valencia too, it does prove successful."
