Wales have a six-day turnaround to face a Japan side who pushed Ireland a lot closer than last weekend’s 41-10 scoreline suggests.
Sherratt was calling the shots as interim head coach in July when an 18-Test losing streak was ended in Kobe.
That long-awaited victory came after the Brave Blossoms had enjoyed a comeback victory in Kitakyushu against weary Welsh legs in sapping conditions.
It will be cooler in Cardiff this weekend but Eddie Jones’ men will still test the concentration of a defence that struggled to contain the slick Pumas.
“Japan’s big thing is speed. They want to play the fastest game on the planet, they try to play low and multi-phase,” said Sherratt.
“The speed battle is always big but against a team that thrive in that type of game it’s important for us to generate it in the middle of the field with go-forward and our ball movement.
“This campaign we have talked about trying to create our own identity. That’s going to take a little bit of time and work on the parts of the game that are more about us.
“We will pay due respect to all of the opposition but it’s a fresh start and we have to create how we play rather than worrying about the opposition at this stage.”
