Benitez is calling on FIFA and UEFA to reform World Cup and Euro qualifying so England no longer have to play minnows such as San Marino and save players from a schedule he says is "killing them".
The interim Chelsea manager said: "For me, one simple thing with the national teams is to create an A and B level. Why do you have to play 15 games when you have just two or three teams that are at the level of your team?
"Have an A level and a B level and then you play the B level and the best teams will play in the A level. It will be easier and you will have less games and less injuries.
"Now you have so many trophies and competitions, a man can play 25 games all around the world. It's killing your team physically."