Huddersfield Giants captain Danny Brough has accused the former Super League leaders of complacency.
The Giants have frittered away a three-point lead at the top of the table after hitting a slump and will be looking to avoid a hat-trick of defeats when they face Widnes Vikings at the John Smith's Stadium in one of seven Easter Monday Super League matches.
Brough says his team took bottom-of-the-table Salford City Reds lightly before going down to a 21-20 defeat on Good Friday and has called for a marked change of attitude against the Vikings, last year's wooden spoonists.
"Widnes are a good team," he said.
"There is nobody easy in this league and the sooner we realise that, the better we will be.
"I thought our attitude against Salford was all wrong. I think we turned up thinking we were going to win.
"We were shocking. We needed to take a good look at ourselves because that wasn't good enough."
Huddersfield coach Paul Anderson rings the changes for his side's second match in three days, with 22-year-old back-row forward Michael Lawrence set to make his first appearance of the season after overcoming a knee injury.
"Bruno's looking good," Anderson said.
"That is great news because he will be like a new signing for us."
Widnes will be on a high following their shock 38-22 derby win over title favourites Warrington Wolves, who will be aiming to bounce back against London Broncos at the Halliwell Jones Stadium.
The Broncos, who are set to field a much-changed team, have collected five points from their last five matches after starting the season with four straight defeats.
"London have found some form in recent times and are improving," said Wolves coach Tony Smith.
"We understand it will be a tough fixture for us and we will go out there and show them the respect they deserve.
"It's a test of everyone's mettle over Easter on how teams back up from one game to another with such a short turnaround."
While Smith has the luxury of being able to bring back a trio of experienced players in Brett Hodgson, Michael Monaghan and Chris Bridge, several other clubs with smaller squads are set to blood youngsters to help cope with the short turnaround.
Adam Lawton (Widnes), Edwin Okanga-Ajwang (Salford), Matty Beharrell (Hull KR) and London duo James Woodburn-Hall and Erjon Dollapi are among the new faces hoping to make their Super League bows, while Castleford Tigers coach Ian Millward is ready to hand a debut to 20-year-old second rower Charlie Martin at St Helens.
"I'm really pleased with the progress of young Charlie," Millward said.
"He's been out of the game for 18 months but we want to reward him for his rehabilitation and hard work to get back playing."
Hull KR will come up against two familiar faces when they host new leaders Wigan Warriors, who have former Robins pair Blake Green and Scott Taylor returning to Craven Park.
"They will be both looking forward to going back there I'm sure and they will be looking for big performances," said Warriors coach Shaun Wane.
Elsewhere, Hull FC will aim to halt their slide down the table when they go to Wakefield Trinity Wildcats and Bradford Bulls will be hoping to reward their fans for clearing the snow from Odsal with a win over Salford.
The City Reds will give a second appearance to new signing Lee Gaskell, who was playing in the Northern Rail Cup for Rochdale until becoming part of the exchange deal that took Stuart Howarth to St Helens on loan.
"At 22, I want to push on in Super League and not keep taking backward steps," said Gaskell, who has not ruled out a permanent move to the ambitious Reds.
"You never know," he said.
"They've got big plans and maybe something could happen long-term for me."
In the late afternoon kick-off, Leeds Rhinos go to second-placed Catalan Dragons hoping to repeat their play-off victory on their last trip to Perpignan in September.