Pulis remains convinced whatever players he opts to field "can go there and finish the job off" after being held to a 1-1 draw in the initial tie at the Britannia Stadium 10 days ago.
"I never ever put a team out with red and white stripes on that I think will lose the game," said Pulis.
"Everything I do and every change I make is done so with the mindset that it will help us win the match.
"It is an important competition for us, but we will make changes.
"We have played a hell of a lot of games over the past few weeks, so I will freshen things up a little bit."