England have won their opening three Six Nations fixtures and top the table, however they face a stern test when Wales visit Twickenham in what is being called the championship decider.
"We know Wales is going to be a step up, so accordingly we need to step up in terms of attitude, commitment, preparation and selection," said Jones.
"We are working very hard and we are right on track to being well prepared for Wales."
Jones is now several months and three games into the job and he says he has been impressed with the talent on offer to him.
The former Australia and Japan head coach also feels he has the talent available to him to make the team the best in the world.
"The reason I took this job was because I believed the players were talented enough to be the best in the world and having coached them for five weeks now that only reinforces that view," he said.
"We have a lot of hard work ahead of us, a lot of commitment, dedication to reach the goals. The talent is definitely there and the players have the attitude of wanting to improve."
Click on the video above to hear Eddie Jones on Wales, the depth of talent in England and why he won't be speaking to the press ahead of the Wales game.