While England are in the mix for Six Nations silverware, Wales and Italy find themselves in a scrap to stave off the Wooden Spoon.
A point against England could be enough to avoid finishing bottom for a second successive season if Italy fail to secure anything against Ireland.
Wales have not managed a victory but have regrouped under Sherratt who took over from Warren Gatland on a temporary basis halfway through the tournament.
Gloucester-born Sherratt will be plotting the downfall of his fellow countrymen this weekend in his final game in charge before he returns to coach Cardiff.
Wales are on a run of 16 successive Test defeats but pushed Ireland to the limit in Cardiff before securing two losing bonus points against Scotland.
“I have got a lot to thank him for, and it was no surprise to me whatsoever he has turned things around quickly,” said Smith.
“He is an unbelievable people person, and those boys are playing with a lot more confidence. That is something he has brought to them.
“He has got an unbelievable attacking brain as well, and you can see by the way they are moving the ball and some of their strike-plays, he has stamped his name all over that stuff.
“He has them all on the same page, which is the main thing. He has got them to fight for each other again. He has clearly put some pride back into the shirt.”
