Matt Peet's side were hammered 30-4 at Leeds last Saturday, a third defeat in five outings.
The drop in form has seen the World Club champions lose Super League's top spot.
And they head into today's derby against St Helens without a raft of creative talent.
Man of Steel Bevan French and main No.9 Brad O'Neill are crocked, while England scrum-half Harry Smith starts a three-game ban.
Leeming admitted: "It's a massive game and it seems we're playing in these big games week in, week out.
"But that's perfect.
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