Benitez says the demands are proving a dilemma for scouts.
"The problem at Chelsea is that everyone can see the players who have been so successful and that makes it difficult to see new ones coming through and maybe winning in the future.
"I won't say the club is moving away from English players because local players are important to any team in the Premier League.
"In the Champions League you need four home-grown, English players.
"At Liverpool, I was criticised for some of the decisions I made but it was because we needed to sign English players.
"Here, it is the same situation. We are trying to find solutions but these are managerial decisions and sometimes it's not easy for the fans to understand.
"My position is I have to use the best players I have under contract.
"I don't advise the club on who to sign or release. I give my opinion but the club know the situation."