Cooke was left disappointed by his side’s 24-8 defeat against Dewsbury Rams, insisting: “There’ll be some changes to the team. We can’t gloss over the performance from last week.
“We can’t have a performance like that and have it be deemed acceptable.”
Cooke has no new injury concerns for Sunday’s game, with the focus purely on improving his side’s performance.
Cooke said: “We sat down and had a long chat about it, and with 10 games to go we’ve got to improve as the play-offs come into focus.
“Whitehaven played well against Leigh and well against North Wales too. I’ve seen both of those games and they’re certainly playing a lot better than at the start of the season. We’re going to have it all on come Sunday afternoon.
“We’ve just got to improve, and if we do that then we’ll give ourselves a chance.”