Benitez told The Times: "You always have confidence in a player that arrives with energy and desire and who has great quality. However, the truth is that he has been a fantastic success. He has already scored 28 goals and the level of play he brings to the side and his commitment to the team is hugely significant.
"We formulated a plan when he arrived, focusing on trying to keep him up front close to the defenders because with the speed that he has, if you give him a good pass he'll latch on to it. The problem is, with so many games we haven't had bags of time to work on specifics. We've tried with the group to work on certain technical individual aspects as well as helping the players to learn how to execute at crucial moments.
"In Fernando's case this involves tuning up his finishing, for example. We try to find time to work as well on Steven Gerrard's new role, which he is certainly enjoying."
Benitez also said: "Whenever we talk about the deal for Torres with Atletico Madrid we always include Luis Garcia in the price. The total cost of the operation is around £20 million."