Trinity were left stunned last weekend when they were thrashed 46-16 by Hull Kingston Rovers and Kear has demanded swift redemption when they face his former club this evening in front of the TV cameras.
"Last week's game was our worst performance of the season," said Kear. "Unfortunately, all our shoddy performances have been at home and I have real empathy with the fans.
"Tomorrow's game is not about Hull FC, it's all about us. The players are a little fragile and confidence is low but we have gone back to basics and I want them to play as if it really matters."
Wakefield are desperate for two points to keep them in touch with the top-eight play-off places.
But they will have to do without key playmaker Sam Obst, who misses out with an ankle injury, while forward Danny Kirmond is also absent because of a knee problem. England hopeful Aaron Murphy should play after it was revealed he had not fractured his thumb, while Paul Cooke and Paul King will face their old side.
Former France international Julien Rinaldi will remain at Trinity until the end of the season after signing a new deal.
The 31-year-old forward joined the Wildcats on loan from French club Villeneuve Leopards last month, and after scoring a try in three appearances the club have sought to tie him down as they push for a play-off place.
"Julien has fitted well into the squad at Belle Vue and I'm very pleased that he has agreed to remain with us," said Kear.
"He has been a great addition to our squad and helps us maintain competition for first-team places."
Half-back Richard Horne is back in Hull's squad but there is no place for either Sam Moa or Mark O'Meley (both calf). Winger Mark Calderwood will be looking to make just a fourth appearance of the season following a hamstring problem.
Eorl Crabtree looks set to return for Huddersfield Giants tomorrow when they host Crusaders at the Galpharm Stadium.
The 27-year-old has missed the last three Super League fixtures after picking up an ankle injury in the defeat at St Helens on June 11.
It is a timely return for the front row with news that fellow prop Keith Mason is out for a fortnight with a scar tissue problem.
"Every week it seems a case of one in, one out, Keith has been playing very well this season and he'll be a big miss" said Crabtree.
Prop Liam Higgins is back after a knee injury for Castleford Tigers who are chasing a fifth successive victory when they visit high-flying Warrington tomorrow. Centre James Evans remains out, though, while there is no place in the squad for loanee Kyle Wood.
The Tigers have banned three fans from attending home matches until at least the end of the season, following allegations of obscene chanting.
The Tigers were fined 40,000 by the Rugby Football League late last month after a tribunal found them guilty of breaking operational rules after Crusaders winger Gareth Thomas was subjected to homophobic chanting.